Matt Waring

The National Museum, Norway

The newly-opened National Museum in Oslo highlights the history of Norway in the country’s largest art exhibition. Henning Larsen and Massimo Iarussi designed the architectural and exhibition lighting respectively, to showcase this grand collection.

Opened in June of this year, Oslo’s National Museum showcases the full breadth and history of Norway with the largest and most valuable art collection in the country.

Bringing together extensive collections of classical, modern and contemporary Norwegian art, as well as architecture and design, the new museum has instantly become a landmark for Oslo, sitting on the scenic harbour of the Scandinavian city.

Designed by architect Klaus Schuwerk of Kleihues + Schuwerk, the museum was commissioned by Statsbygg, the Norwegian Directorate of Public Construction and Property, and merges four pre-existing museums – the Museum of Architecture, the Museum of Contemporary Art, the Museum of Decorative Arts and Design, and the National Gallery of Norway.

The new National Museum spans 54,600sqm, with 10,000sqm of exhibition space. Materials such as slate, limestone, glass, marble, bronze, and brass, as well as light and dark oak contribute to the radiance of the facility, which blends natural and artificial light to create a bright, welcoming aura.

A melding of classical and contemporary architecture, one of the defining features of the exterior is the vast “Light Hall” that tops the building. Made of backlit layers of glass and marble, the Light Hall is the largest backlit façade in Norway, and instantly helps make the new landmark museum stand out.

Given the size and scope of the museum, the lighting design was split into two different teams, with Henning Larsen (formerly Rambøll) designing the architectural lighting for the exterior and outdoor spaces, as well as general lighting for the museum’s public spaces, offices, and cafeteria; meanwhile Italian designer Massimo Iarussi designed the lighting for the 86 galleries and exhibition spaces.

Kathrine Hjelmeset, Senior Lighting Designer at Henning Larsen, explained the design concept: “Designed with the perspective of housing artworks for centuries, the museum is built with clean and robust materials that will age with dignity, like oak, bronze, and marble. The same intentions were set for the lighting design – to be timeless and still relevant many years after the opening.

“The concept of the lighting was a balanced design with a focus on light quality and experience, with a luminance hierarchy. The lighting level in the area in front of exhibitions is therefore toned down according to this hierarchy. We wanted the lighting to emphasise the architecture and be a natural part of the environment. Visual comfort, readability and luminance are the main elements; both technical and aesthetic solutions are emphasised.”

As part of this, Henning Larsen considered placement and luminaire types that would provide a balanced, homogenous lighting throughout. “The light was placed where it was needed and with the shielding necessary to provide the experience that was desired, as well as the required light level for performing the task in the specific room,” Hjelmeset explained. 

“Three types of ceilings were chosen in the project: metal, textile and fixed; these lighting concepts are used throughout the museum. For the outdoor areas, the concept was to make this museum an integrated and natural part of the city by choosing solutions used in surrounding areas. The historic buildings in front of the museum received lighting that reflected original fixtures and locations reproduced from old images.”

The historic buildings stand in direct contrast to the illuminated Light Hall that sits behind. Lighting for this feature was developed in close cooperation with the architects. Hjelmeset explained further: “The design goal was to create a calm and monumental façade with a lighting design that emphasises the materiality, with possibilities to slightly change the appearance.

“The lighting concept was to create an ice feeling, with allusions to ice flake layers in the façade. The original material was alabaster, but changed to recycled glass in the detail phase. Unfortunately, this couldn’t handle the differences in temperature the façade faces and the material had to change. There was a lot of testing of new materials on site, and the final solution was to use a 4mm thick layer of marble stone.

“The lighting was designed and programmed with 10 scenarios, designed in dialogue with the architect and the lighting staff of the museum. The scenarios vary from warm to cold, with slow movements of shadow, colour temperature changes and dimming variations. These are programmed in a wheel of the year, and the idea was to use warmer light in wintertime, slowly turning cooler in the summer. Our goal was to emphasise the marble material and give the light environment a sober and delicate visual appearance despite its enormous dimensions. The lighting levels are also balanced with the visual environment of the surrounding buildings.”

Inside the museum, lighting comes via a series of artificial skylights, in both the exhibition and general spaces. The decision behind this came from the architects, but Hjelmeset explained how the lighting designers “had an important role in the design and result”. 

“We did a full-scale mock-up and tested out many different solutions. The result was a double layer of textile in front of a grid of LEDs, varying from 2700K to 6500K,” she said. “The boxes are custom-made by Zumtobel, and there are many different sizes in the project. The architect wanted the artificial skylights to have a visual depth and for the textile to be partially translucent. We did a lot of testing to get the right textile, the combinations of textiles and the placements of the LEDs, to have the desired translucent effect, while at the same time not seeing the LED dots.

“Due to restrictions for artificial lighting towards paintings, the skylight is significantly dimmed down in most of the exhibition rooms. We performed measurements of the amount of light and quality in one of the sample rooms, before ordering the solution for the rest of the museum. The test also included a spectral distribution measurement and focus on the dimming quality without flicker.”

Throughout Henning Larsen’s work on the museum, collaboration and cooperation were essential factors - from working closely with the architects on some elements, to liaising with exhibition lighting designer, Massimo Iarussi.

“There was close cooperation between all disciplines in the project, and the architect was in lead of the aesthetic choices that were made,” Hjelmeset explained. “All luminaires and locations were discussed and reviewed with the architect, with some special-made luminaires that were designed for this project in cooperation with the architect.

“Henning Larsen already set the infrastructure for the lighting tracks in the museum by the time Massimo Iarussi became engaged for the exhibition lighting design. We worked closely with him when deciding the light levels for the artificial skylight. Henning Larsen were also commissioned by Statsbygg to lead the process of providing all spotlights for the exhibition areas, and we were responsible for setting the demands for the light quality. We worked both with the museum lighting staff and Massimo in the specification process, coming to us with thier professional input.”

Iarussi added: “There was an excellent communication with Henning Larsen on the themes for which we were both involved, such as the skylights and the exhibition halls, or the transition areas between exhibition and non-exhibition spaces, or in lighting some of the external courtyard where contemporary art installations are exhibited. There was also a very good collaboration in the phase of fine-tuning the tender procedures for the supply of lighting fixtures for the exhibition, which was taken care of by Henning Larsen, with our collaboration for the drafting of technical specifications of the lighting.”

Iarussi joined the project in 2016, following an international competition for the exhibition design, which included lighting design, graphics and multimedia installation. Part of a collaborative that included Guicciardini & Magni Architect for the exhibition design, Rovai and Weber for graphics and InnoVision for multimedia installations, Iarussi hoped to use lighting to reinforce the experience of the visit within the museum.

“The museum has enormous dimensions, with several thousand artworks on display, and is housed in a grandiose, rigorous architecture. It was necessary to keep the visitors’ attention on the exhibition; variation became the key word,” he said.

“We wanted the light to accompany the visitor, reinforcing the experience of the visit. The light had to appear innate with the set-up, it did not have to be intrusive, nor become the protagonist. We wanted the focus to be on the artworks. The set-up and the light both contribute to this goal, reinforcing each other.

“Developing around the unique collection, the exhibition design emphasises both the precious individuality and the choral value of the artefacts, through a fruitful journey of ideas and solutions created in close collaboration with the museum curators, conservators, educators and technical experts. To enrich the exhibition for visitors, the arrangement of the main exhibition sections has been diversified by the use of different solutions, colours and tones. In various ways, the exhibition elements aim to shape the galleries by creating installations evoking classical archetypes or modern abstractions. Materials, colour and light contribute to creating environments where the artworks are exhibited and highlighted.”

Iarussi shared some examples where this variation in lighting approach helped to differentiate the many exhibits. “In the first room, the faces of ancient Greek and Roman sculptures turn their gaze towards the visitor, who is invited to place themselves at the centre of the scene, marked by a bright spot of very warm colour. The shadows of the sculptures on their pedestals draw a star on the floor, which evokes the propagation of ancient civilisations in all directions, towards the whole world. The next four rooms describe the cultural relations between the Scandinavian states and the rest of Europe, between 1100 and 1600, through the exhibition of works of sacred and profane art. This section is characterised by the vivid red colour of the walls and dark grey platforms. The chiaroscuro tone, generated by a strongly contrasted lighting, gives greater richness to the objects on display.

“Once again, in Room 7, dedicated to East Asia, the bronze panel coverings of the display case evoke the richness and mystery of the Far East under a golden light. Unusually warm, it accentuates the charm, together with the texture of the backlit panels that evoke rice paper. These are just a few examples - throughout the exhibition, where the lighting and the set-up always go hand in hand, in a constant dialogue, which reinforces each other.”

This constant dialogue of the lighting and set-up spans across the 10,000sqm exhibition space, and Iarussi believes that the variation helps to create a feeling of narrative and flow throughout.

He continued: “We treated the 86 rooms as if they were the chapters of a novel. The consistency in a novel is given by the style, by the hand of the writer, by the language. In our case, it is given by the touch, by the light hand, by the discretion in manipulating the objects we use to create a light scene. But each chapter tells a different part of the story, with inevitably different words, with the infinite, small variations that from time to time, we bring to all the attributes of light: intensity, contrast, hue, direction, and so on.”

Iarussi looked to use the balance of contrasts and modelling to bring each room to life, while sticking true to the concept of light as a narrative tool: “The first rooms are extremely contrasted, with punctual lights with precise and narrow light beams, which generate very strong contrasts, with almost theatrical effects. The exhibition unfolds on a chronological criterion; the light becomes a kind of metaphor of a journey through time. The rooms of antiquity, characterised by very strong contrasts, are gradually followed by rooms characterised by lighter colours and softer contrasts that represent the unfolding of time. As we approach the present day, light becomes more and more ‘democratic’, less focused on individual objects, more pervasive.

“The transition to the modern era is marked by Room 20, where the journey into modern design begins and in which the massive use of diffused light combined with the punctual light of spotlights is introduced. The multitude of objects offered by industrial production is underlined by a light of greater intensity and, above all, more diffused, symbolising the availability of such objects for all. It was necessary here to create a custom system that combines the soft and diffused light of extended luminous panels with that of point projectors, housed in the same system.”

Across the museum’s extensive, diverse range of exhibitions, there is a wide range of artefacts on display - many of which are, due to their history, very delicate. This means that Iarussi and the wider exhibition design team had to be very considerate in their approach, to preserve the objects on display, while still providing effective illumination.

As someone who has worked on a number of museum projects in his career, this was a challenge he has become used to. He explained: “We know that conservation is one of the top two priorities for museums. However, this must always be balanced with the need for the best enjoyment of the artworks, which is the other major priority of the museum, without which the museum itself would have no sense of existence. In many cases, compliance with the best requirements for conservation can have a negative impact on the perception of the artworks, if it is not carried out with great care. For example, if in a room we only have very precious objects that must be lit at a very low level, we can illuminate only those in a focused way, keeping the whole room at an even lower level to make them stand out. However this is not possible if delicate objects cannot be isolated and are displayed close to less delicate objects.

“We have done a lot of work in this regard, organising during the design process workshops with curators, so that they could become aware of the perceptual effects, as well as the conservative ones, of the different solutions. In some cases we suggested simple solutions, such as a faster rotation of exposed objects to reduce their exposure time. In others, we have proposed more complex solutions. For example, in the beautiful royal costumes gallery, we proposed a dynamic lighting system: the light on the clothes is very low most of the time, but from time to time, a dynamic sequence follows, in which the costumes are illuminated one at a time, at a higher level, for a short time. This has no negative effects on the conservation, because the total luminous exposure is kept within the allowed limits, but at the same time it allows visitors to fully enjoy the preciousness of the Queen’s clothes, even if for a few minutes.”

With the sheer size of the museum and the delicate nature of the artefacts on display all factors, the biggest challenge that Iarussi faced on the National Museum is perhaps not what you might expect it to be. “It may seem paradoxical to tell, especially for a project like this, which required such a long preparation time, but the biggest challenge was to close the project on time.

“From our experience in museum lighting design, we know that a huge part of the job takes place in the field, in the final stages of installation and tuning. It is the phase in which the last details, the aiming and the adjustments, are decided, which are what makes the difference, even when everything has gone smoothly until then.”

Iarussi added that the size of the museum, and the fact that it was all brand new, was also a factor to consider: “We have worked in museums even larger than this, such as the Uffizi Gallery in Florence. But these were always existing museums, which were renewed one section at a time. Never have we had to manage these dimensions and this amount of artwork exhibited all together, to have to stick to a single completion date for the whole museum. And we could not accept compromises on quality. We managed to get out of it, simply by putting all our resources into play and using all the time we had, until the last minute.”

That being said, now that the museum is open to the public, Iarussi and his team of collaborators are “very satisfied with the result”.

“As we completed the last adjustments in the galleries, it was exciting to see how much of what was taking shape responded to what we had imagined for some years now,” he said. “This is even more true for some aspects that we had not fully foreseen. For example, what struck me most in the final result was how much the museum really succeeded to represent the identity of a nation. It was an aspect expected and pursued by everyone from the very beginning, but I did not realise its success until I saw the final result.”

This is a view echoed by Hjelmeset, who feels the lighting adds to the visitor experience of the National Museum. “The lighting design is united with the architecture, and we are very pleased with the result,” she said. “We are very pleased with the light quality, especially in the exhibition areas, and the downlights in between the textile ceilings. We think the public areas work visually very well, and that the carefully planned solutions work well in practice. The lighting is an important part of the design and experience of the museum.”

The National Museum in Oslo is the result of wide-scale collaboration among a number of different teams and studios from a myriad of fields, and Iarussi concluded that the strong cohesion among the various partners is what led to the project’s success.

“The process of collaboration is always a fundamental element for us, and perhaps in this project it has been even more so,” he said.

“Being a lighting designer, by its very nature, is a job that only makes sense within a team. Lighting designers are used to dealing with different skills - architects, interior designers, curators and so on. The interpersonal dynamics of the work group are as decisive as the individual skills and specialisations. When the perfect harmony of the group is added to the experience of each one, the results can only be exceptional.”

www.massimoiarussi.it
www.henninglarsen.com

by Matt Waring

Little Island, USA

Designed by Heatherwick Studio, Little Island rises from the Hudson River on a series of concrete ‘tulips’, giving New Yorkers a unique new public space in which to explore and unwind. Fisher Marantz Stone designed the lighting for the park, which was intended to complement both the architecture and landscape features.

Situated on New York City’s historic Pier 54, Little Island is a totally unique public space unlike any other in the city. Emerging from the Hudson River, the island sits atop 280 concrete supports, dubbed ‘tulips’, offering a literal and metaphorical escape from the hustle and bustle of downtown Manhattan.

Conceived as a collaboration between media entrepreneur and philanthropist Barry Diller, and the Hudson River Park Trust (HRPT), Little Island was designed by Heatherwick Studio as a public park and outdoor performance space.

Inspired by the hundreds of wooden piles that stuck out of the Hudson River as remnants of old piers that had previously existed, Heatherwick crafted the identity of the park around its structural piles. Expanding on the idea further, the architects made the design decision to extend the piles out of the water, raising up sections of the island, and fusing them together to form the topography of the park. The resulting design developed as a system of repeating piles that each form a generous planter at their top – each planter then connects in a tessellating pattern at different heights to create a single manipulated piece of landscape.

Lighting for the unique structure and parkland came from Fisher Marantz Stone (FMS), which became involved following a longstanding relationship with HRPT.

Enrique Garcia Carrera, Associate Principal at FMS, explained further: “For 15 years prior to Little Island, FMS had been involved with HRPT in creating the park system lighting masterplan and providing peer review for the lighting of each individual segment. When the time came for Little Island to engage a lighting designer, HRPT put our name forward for consideration among a selection of potential lighting consultants. After several interviews and negotiation sessions, the Little Island design committee decided that FMS was the right firm to help create Little Island’s luminous environment.”

The original lighting brief to create this “luminous environment” was to “subtly highlight the concrete supporting structure and landscape features”, while keeping the lighting instruments as inconspicuous as possible. However, Garcia Carrera continued, “it was later understood that lighting the ‘tulips’ would have unacceptable environmental ramifications, which constrained the lighting interventions we could consider. In addition to that, we were aware that lighting for safety and wayfinding would be of high importance, given that the park would be open until midnight every night, weather permitting, and would programme evening performances several times a week.”

As such, FMS developed a lighting concept that would bring a base layer of wayfinding and accent light from low heights and concealed positions, where possible, supported by lighting from taller positions whenever scale or topography required it. “We hoped to extend and further enhance the magical environment created by the architects and landscape designers during the day,” Garcia Carrera added.

“To do this, we had vigorous discussions with the client and design team about what areas and elements of the projects should be highlighted at night, which areas were necessary to light for code and/or safety, and which would be superfluous to illuminate. We then set about to research and develop the means to make the island and its components the star of its night-time environment, while the lighting instruments would be concealed from view.”

As part of its ambition to conceal fixtures, FMS designed a bespoke, slender light pole with multiple fixture heads that provide path illumination and highlight the tops of trees, in instances where existing light poles were not sufficiently inconspicuous to satisfy the vision of the design team. 

Alongside this, FMS looked to pay tribute to the heritage of the site – Little Island is on the site of the former Pier 54, which received the surviving passengers of the Titanic. “The Hudson River Park esplanade in front of Little Island is home to the only remaining structure of Pier 54, its historic façade arch, which was also illuminated by FMS as a beacon to announce the entry point to Little Island,” Garcia Carrera added.

Despite the striking architectural gesture of the supporting tulips, Garcia Carrera explained that the architecture on the island itself is “very subtle”, and instead defers to the topography and landscape. As such, he said that the main architectural gestures involve the accessway bridges, the tulips, and the formal amphitheatre that sits within the park. “Each of these would be subtly highlighted while carefully limiting the reach of the lights to avoid perturbing the wildlife native to the Hudson River below,” he said.

The presence of this wildlife within the river was brought to the fore during the design process, and was one of the key challenges that FMS had to work around, particularly when figuring out how to best illuminate the supporting tulips. Garcia Carrera explained: “The support pillars are undoubtedly the most striking design element of the island park, and at the onset of the project there was little doubt that they should be suitably highlighted.

“However, they are also the elements in closest proximity to the Hudson River, and of special concern to the New York State Department of Environmental Conservation (NYSDEC). We eventually came to the decision that only the tulips that were not directly visible from the water would be able to be highlighted, which mostly limited us to those adjacent to the entrance bridge and those visible above the island surface.”

Environmental considerations for the lighting design also extended to light trespass and pollution – something that Garcia Carrera said is “important in every architectural lighting project, including urban projects, as we’ve learned in the past decades of the harm to wildlife and to the visibility of our night sky”.

On Little Island, it became evident that the project was located in a section of the Hudson River that is home to the American eel, meaning that FMS had to be mindful not to disrupt its habitat.

“We performed several studies, including existing illuminance values on the site, illuminance values in nearby sites along the Hudson River, and projections of light penetration underwater at the depth of the eel habitat, to demonstrate to NYSDEC that the habitat would not be disturbed by the negligible stray light component in our design. This exercise also led us to limiting the highlighting of the tulips, regardless of their architectural importance to the project.”

The extra considerations towards the surrounding nature also meant that the designers had to be slightly more discreet than they had initially planned, despite the new park’s relative isolation from the inner city of Manhattan. Garcia Carrera added: “The more isolated location makes the project and its lighting stand out in a way that might not have happened in a more densely built-up part of the city. However, that same river location prevented us from implementing some of the lighting concepts that we originally developed, in consideration to the natural environment below and surrounding the island. So, we in fact had to be more restrained at this location than almost anywhere else in New York City, including other segments of the Hudson River Park.”

Other challenges that FMS had to overcome on this particular project included the harsh, corrosive environment caused by the salty seawater that comes from the Hudson River merging with New York Harbour as it reaches lower Manhattan – which meant that only the sturdiest of light fixtures would survive. Alongside this, the outdoor park needed state-of-the-art dimming controls, but lacked ventilated, dry areas to locate control equipment and repeaters. Overcoming this, the lighting control system, fully hard-wired with cables and boosters, was buried underground for robustness and resilience in the harsh environment. Despite this, the system allows for park staff to wirelessly recall and adjust lighting scenes from any location within the park.

While the lighting controls are buried beneath the park, the lighting fixtures themselves are fully immersed within the architectural fabric of the project. “The lighting, as in all FMS projects, seeks to be fully integrated and indistinguishable from the architecture,” Garcia Carrera said. “Heatherwick Studio did have specific ideas on how the park should look at night, but left it to us to devise the methods to achieve this vision.

“FMS took the lead in determining the lighting approach for each area, while always going through rigorous review by Heatherwick, landscape architects Mathews Nielsen, and the Little Island committee – a process that kept informing and fine tuning our design as it developed.”

Indeed, the high-profile nature of such a project meant that there was several different teams, departments and external stakeholders involved, making the process slightly more arduous than perhaps expected on other, more traditional projects. However, as Garcia Carrera explained, the ends justify the means.

“Having such a high visibility project, of unprecedented design and scope, guided by so many different stakeholders, all with their own priorities, makes our job as a lighting designer much more difficult than on more ‘normal’ projects,” he said. “However, FMS has a long history of working on unique, exceptional projects and we know going in that the journey will be difficult, but the result is often quite satisfying for all. That was the case with Little Island.”

Looking back on the project following its completion and unveiling to the public last year, Garcia Carrera reflected on the magical experience that has been created for visitors. “In order to convey our design concepts to the committee, we produced several renderings and animations of the illuminated, night-time environment from various vantage points. None of them ended up doing justice to the completed project,” he said.

“Little Island surpassed our expectations of what it could be at night. The experience is a magical trip of discovery, with outstanding architecture and landscape areas being revealed and concealed by turns, thanks to the thoughtfully designed and executed lighting. At night, Little Island is transformed into a luminous floating jewel.”

And this “floating jewel”, Garcia Carrera believes, comes at a much-needed time for New York, particularly following a tumultuous few years. He concluded: “A city like New York has a shortage of welcoming exterior public spaces that can be visited after dark. Appropriate lighting has the power to draw the public in and help them feel safe, comfortable, and in a mood to explore.

“Nothing made this clearer than the pandemic, in which New Yorkers, mostly confined to their cramped apartments, needed to experience the outdoors like never before. Little Island came around at the exact moment when it was needed, and it being able to operate after dark is something that people have dearly appreciated.”

www.fmsp.com

by Matt Waring

Exchange Square, UK

As part of a wider lighting vision for London’s Broadgate area, Speirs Major has created a tranquil, serene lighting scheme for Exchange Square that enhances the park’s character against the surrounding urban environment.

As cities continue to grow and build up all around us, there becomes a growing need for calm, green spaces within urban metropolises. One recent example of this in action is the newly completed Exchange Square in Broadgate, London. 

Set above the tracks of Liverpool Street Station, the tranquil park within the urban heart of the capital offers a much-needed dose of respite and relaxation within the heavily built-up area.

Adding to this ambience after dark, lighting design studio Speirs Major has shaped a warmly evocative blend of light and darkness, revealing the multi-level topography and curved landscape elements, while supporting intuitive wayfinding and ease of access.

Aimed at revealing the natural texture, colour and movement of the various materials and finishes – from foliage and water to stone and wood – the lighting design enhances the park’s character as natural light fades, creating a gentle respite from the harsh urban fabric of glass, steel and concrete.

Speirs Major’s lighting design is part of a wider lighting vision that the studio developed for the Broadgate Public Realm Framework for British Land, becoming the latest project for the firm, following 100 Liverpool Street and 3 Broadgate. The space focuses on wellbeing and open access, marking an important journey for the client in its journey from an office-led campus to a mixed-use, creative environment.

Benz Roos, Associate Partner at Speirs Major, explained the brief for the space further: “British Land was closely involved in the concept development and attended early workshops with us and with architects DSDHA.

“The brief was to support a park-like feel for the square, creating a natural, tranquil feel that would offer people respite from the intensely urban surroundings.”

As such, Speirs Major’s lighting concept focused on how light could help people to “slow down and enjoy a moment”, by creating an inviting, warm ambience with plenty of opportunities to dwell and socialise. Roos added: “We played up the textures, colours and movement to reinforce the sense of a natural park and revealed the unique multi-level topography to ensure safety and aid wayfinding after dark.

“We kept the lighting soft, warm and beautifully integrated within the landscape elements to create an intimate ambience. We worked with the curving topography, proposing the light slots that reveal the terrazzo steps, highlighting the meandering surface of the ribbon retaining wall and underlighting the benches, creating multiple places to stop, sit and enjoy.

“The lighting also responds to the patterns and textures of nature, with soft light to planting and through the leaves of silver birch trees, casting a dappled effect on the ground. The colour of the light adjusts tonally with each season, with warmer white light enhancing the rich autumn leaves and bare wooden branches in autumn and winter, and fresher, cooler white light celebrating the green buds and vibrant leaves of spring and summer. Light integrated into the water feature in the steps also creates beautiful ripples and patterns.”

In line with this concept, Speirs Major opted to keep much of the lighting at a low height, preserving an intimate ambience that encourages easy social interaction. At the perimeter, light for circulation is provided from We-ef luminaires on columns at a human scale, while low-level bollards from DW Windsor reveal the internal routes and low-level planting. 

Across the multi-level site, light is beautifully integrated within landscape elements to improve legibility and contribute to the warm ambience; an even wash of light from Architape reveals the dark metal vertical face of the curving ‘ribbon’ retaining wall that runs through the park, while the slatted timber benches that sit above the wall are softly lit from beneath. Elsewhere, slots cut into the faces of the terrazzo step seating and water feature contain hidden light sources, also provided by Architape, creating mesmerising patterns and ever-changing ripples. Integrated handrail lighting came from Stoane Lighting, alongside tree uplighting and projectors, and canopy downlighting, while floor washers in the steps came from iGuzzini.

While the lighting design was intended to foster a welcoming, relaxing environment, Roos added that this was in tune with the core architectural ambitions for the space. “The key considerations for the landscape architecture were largely aligned with those for the lighting: to create a park-like environment that encourages people to meet up, rest and relax within this heavily urbanised setting, while also bringing nature back to the city,” he explained.

“The design focused on creating a bucolic, soft, organic space with a priority to create a space that nurtures both people and plants, promoting wellbeing and biodiversity. The generous planting, curving lines and soft materials create a distinct contrast with the hard granite of the post-modern architecture around it, while the design also prioritises ease of access for all.”

The softer, low-level lighting of Exchange Square creates a warm, intimate atmosphere throughout the space, and Roos added how the minimal, pared-back design was a conscious move on the part of Speirs Major. “Retaining darkness and a degree of shade is always a conscious part of our design process. Not only is this more sustainable and better from an ecological standpoint, but by carefully choosing where we add light, we make use of contrast to shape atmosphere, support improved legibility and wayfinding, and promote a sense of security.”

The decision was also aided by the wider environment in which the park sits, as Roos explained: “There was already a lot of light spill from surrounding buildings, we worked within those conditions to create the right atmosphere for the park. We always try to limit uplight where possible, and in this case the lighting is all integrated or pointing downwards.”

The more restrained lighting approach is a welcome one for a green space within an inner city, and Roos added that, while some clients may have requested higher light levels under the belief that this would improve safety and wayfinding, Speirs Major had a supportive client throughout. “The client and architects were very engaged from the outset with the concept and the approach,” he said. “We had early access to the Broadgate estate management team, so we were able to explain our ideas and discuss their requirements (for CCTV, for example), so that they could be integrated within the approach as much as possible from the start.”

That being said, the lower lighting levels meant that there were some additional challenges when it came to CCTV. Roos explained: “One of the more difficult challenges was achieving the necessary vertical illumination on faces for CCTV and facial recognition software, given the low height indirect lighting approach. We assessed the contribution of light from the adjacent main routes and buildings, balancing the CCTV requirements against preserving the contrast we wanted for the square.”

Followint the project’s completion, Roos reflected on the success of the lighting – and the work of the contractors in bringing the design to life – particularly in creating a welcoming space for people to enjoy.

“We were thrilled to see how quickly people really took to using the space after dark,” he said. “For this project, the details were realised so beautifully by the contractors and the electrical sub-contractor – all done neatly and with immense care, they were a joy to work with.

“One of the major aims of the Broadgate development was a shift from an office-led campus to a truly mixed-use, creative environment. Bringing nature and wellbeing to the fore helps to encourage a more diverse group of people to come and use the public spaces to meet, celebrate, work and relax surrounded by greenery – which in turn fosters creativity, a sense of community and improved wellbeing.

“The right lighting not only allows the square to continue to be used for this purpose as natural light fades, but also shapes a completely different interpretation of the space, giving people a new experience to enjoy after dark.”

www.smlightarchitecture.com

by Matt Waring

Zerostrasse, Croatia

Connecting the Croatian city of Pula, Zerostrasse is a labyrinthian network of tunnels and passages with a gallery at its centre. Local design studio Skira Architectural Lighting developed a lighting scheme for the tunnels that improves accessibility, while showcasing their heritage.

Hidden beneath the Croatian city of Pula lies a series of interconnected, underground tunnels. Built at the time of the Austro-Hungarian Empire, the subterranean labyrinth was used to shelter the city’s population during air strikes on the city during World War I.

Now, the network of tunnels, shelters, trenches, galleries, and passages, dubbed Zerostrasse, has been repurposed into a pedestrian metro, with a central gallery, and a vertical elevator connection to the Historical and Maritime Museum of Istria, which sits atop Pula’s highest hill.

As part of the renovation of the tunnels, led by architect Breda Bizjak of BB Arhitekti, Pula-based lighting design studio Skira Architectural Lighting was appointed to develop a solution that would provide comfortable linear lighting along the 2,700sqm of tunnels.

Dean Skira, Founder of Skira, explained how the studio first joined the project, and how the lighting concept developed: “The town authorities invited us to submit a bid for an initial lighting design concept for Zerostrasse several years ago, as is often the case for public projects. Our bid was accepted, and we were appointed to develop the lighting scheme for the network of tunnels.

“The collaboration with Breda Bizjak was very open and constructive; she was exceptionally familiar with the project, as she presented the concept of its revitalisation as a student. About 20 years later, the idea grew, and the project started with its active role in preserving the fortification heritage and improving accessibility for the museum and its new exhibition space. This indicated that the lighting design had to be immaculate.”

While the reconstruction of the tunnels created new opportunities for movement within the city, the isolation from external influences – particularly daylight – influenced the lighting design concept, as did the raw fabric of the site.

Skira continued: “The concept was apparently as simple as the elements of the project. But when you start to work, you notice the details, the constraints, the collaboration flow, and the overall complexity.

“The lower assembly was built in living rock, so during the renovation, great attention was paid to the preservation of the rock mantle, which necessitated the collection of all electrical installations in one route under the vault, which we then decided to use for the placement of lighting. This assured that no additional elements were added to the space. The complete lighting system needed to be controllable and easy to maintain. The intention was that the tunnels became a new attraction, and a pleasant shortcut from one side of the town to the other.”

Within Zerostrasse, there are two sets of underground tunnels on two levels: the lower set at city level, and an upper complex, lying below the fortress and museum at the top of the hill. The historic network of Pula’s streets, spread out in several concentric rings that organically adapt to the hill’s topography, are cross-connected, and complemented by the underground tunnels, that run in four different directions. 

While the idea of illuminating a series of historic underground tunnels may sound like a challenge, for Skira, who has experience in such locations, the prospect wasn’t any more daunting than any other project. “Projects bring along challenges when you care about the result and take responsibility for it, regardless of the location,” he said. “We have had several interesting underground projects realised, like the Postojna Cave and the underpasses in Zagreb, with a lighting theme inspired by the metro map. We are currently working on a peculiar tunnel in Bakar, Croatia, as well.

“However, Zerostrasse was unique. Although it’s a kind of an underpass, the purpose is multifunctional and adaptive, but at first not strictly defined. We had to consider this, alongside humidity and leakage, low ceiling heights, and the preservation of the rock mantle. As well as this, the only surfaces that were physically intervened were the concrete floors and the vertical shaft of the elevator, which is located at the intersection of the corridors.”

The new lighting for the tunnels has been kept deliberately subdued, with linear fittings softly uplighting the cave ceilings. Placed in the metal constructions just below the ceiling surface, the fixtures are hidden from view while delicately illuminating the rocky texture of the tunnels.

Skira explained why the design team opted for a clean, minimal approach for the lighting: “Lighting is always essential in dark spaces, and the lack of windows or natural light influenced our motivation to make the area feel more breathable by providing clear and long-distanced visibility of the tunnel and its natural stone.

“We decided to keep the lighting to the lowest possible level, while still being in accordance with the norms and recommendations. The solution therefore provides comfortable linear lighting along the hallways. There is a gradation in lighting at the entrance points - the light intensity increases when you walk towards the exit for a more comfortable eye adaption. During the night-time, these lights are lowered in both directions.”

Alongside the functional linear fixtures, Skira created pockets of intrigue at points along the tunnels, with red flashes of light illuminating cave holes in the ceiling. He explained the process behind this decision: “When designing lighting, we balance and even rein a very powerful tool, which influences our field of vision. Our impulse is to provide visual pleasure and to make a pleasing environment and conditions for other activities. In private and public spaces, the light should bring joy, help people feel better, and also surprise and entertain them where possible.

“The holes in the living rock intrigued us, and it was clear that we should enhance them and make them attractive, thus they become a focal point for the use of red light, which is the colour of the earth’s core as we imagine it. The effect is hidden, it’s mostly not that visible from a distance, it’s an element of surprise.”

In the gallery space at the heart of the tunnels, which is used for exhibitions, music events and similar activities, additional linear lighting circles central pillars, providing increased illumination for the works of art on display. This is then further enhanced by “pop-up lighting solutions when necessary”.

Since completion, Zerostrasse has received plaudits from across both the design community and the general public, picking up a trophy at the 2021 

[d]arc awards in the process. And Skira is grateful for the recognition. “We are humbled by every single award received by fellow professionals,” he said. “We strive to provide projects that push the boundaries of the profession and really embrace challenging projects.

“Zerostrasse affects the redefinition of public space and infrastructural communication networks by providing new opportunities for movement. The isolation from external influences – public content, atmospheric conditions, daylight and sound – is the opportunity for developing a specific multimedia exhibition space. The establishment of vertical communication between the tunnel and the fortress, and the high-quality lighting, made access easier for visitors with disabilities, while the museum has already recorded a significant increase in visitor numbers.

“We wanted to provide a high-quality lighting solution that would ensure a ‘wow’ effect; people seem to recognise this and react to it. Many visitors during tourist season walk through Zerostrasse and post photos to social media with positive comments; they share their experience and enjoy the venue, so our goal is achieved.”

www.skira.hr

by Matt Waring

West End Square, USA

With lighting design from HLB Lighting Design, a next generation-park, framed by an innovative technology trellis, transforms a former parking lot into a lush urban retreat within the heart of Dallas’ Innovation District.

West End Square is a smart park located in the centre of Historic Dallas, Texas, recently rebranded as the Dallas Innovation District. The park has become a testing ground for various technologies within the urban environment, such as WiFi, data collection, smart lighting controls, and remote water management and calibration. At the heart of it all is an intelligent water feature with three distinct operational modes that respond to wind conditions.

The project’s concept was organised around three main activity zones: the Frame, which houses task-focused programmes; the Prairie Gardens, featuring meandering garden pathways for a more relaxed and contemplative atmosphere; and the perimeter footpath providing direct access to the park.

The park’s context, surrounded by multi-family and commercial spaces, called for a transformative lighting strategy that enhanced the human experience while focusing on safety, wayfinding, and sustainability. 

Using technology and activity zones, the park’s overall goal was to create a space residents could use to increase social interaction and work outdoors. This concept guided the lighting design process in creating a balanced luminous environment, while focusing on each task performed within the different activity zones. Responsible for the lighting scheme was lighting design firm HLB, which became involved in the project through a collaboration with James Corner Field Operations; together they share a longstanding working relationship spanning several projects, including the Miami Underline, Metrotech Commons and Ganesvoort Peninsula.

HLB approached the lighting design by combining cool and warm light sources, as well as using a play of intensity and uniformity to define and separate the park’s high activity areas and contemplative moments. The team developed a hierarchy based on important architectural and landscape features worth highlighting, and the unique programme of each area. 

Three main elements were identified, starting with the floating technology trellis, which would become the primary feature and utilise the brightest intensity of light, since it houses most task-related programmes, including ping pong tables, swings, and worktables with integrated power. To keep the trellis canopy completely free of visual clutter, cooler column-mounted direct/indirect sconces illuminate the underside and activities below. 

“The technology trellis allows for a shaded environment under the intense Texas sun,” said Eddy Garcia, Associate at HLB. “The challenge arose from the structure itself; we had limited space to mount various systems, including lighting equipment. We had to carefully coordinate with all disciplines (the Landscape Architect, Electrical Engineer, and Construction Manager) to ensure that when installed, these systems did not make the exposed structure look cluttered. As such, all equipment mounting, wiring, and conduit routing was 3D modelled in advance to provide a clean detail for the trellis.

“Our design intent for the project focused on creating a balanced luminous environment that supported the overall vision for the park. Using warm and cool colour temperatures, not only did we provide task-oriented lighting, but by including an indirect component at the Frame we ensured that the overall architecture was highlighted in a cooler light to not skew the finishes within the Frame. In addition, to correctly detail all the fixture and conduit mounting, all luminaires were custom painted to match the technology trellis and minimise seeing the light fixtures.”

Elsewhere, the footpath was considered a medium intensity and transition zone as the team needed to provide lighting for the street, in addition to the park interior. While for the Prairie Garden, general ambient lighting and low-level nuance lighting layers were introduced to maintain a relaxed, romantic, and warm atmosphere.

A 4000K CCT was utilised for the Frame and the sidewalk; and a moonlighting approach adopted for the Prairie Gardens, which provide a natural and soft wash of general ambient light filtered through canopy trees. The internal central garden was designed with two additional layers. The first layer was achieved through column-mounted adjustable area lights casting a cool wash of light through the garden trees, providing general ambient illumination and dramatic shadow play through the canopy trees. A secondary garden layer is achieved through warm low-level bollards with a 3000K CCT at crucial decision points to enhance wayfinding and tree uplights for vertical illumination throughout the garden.

“Light fixtures were strategically selected based on performance requirements to adequately illuminate the various spaces while minimising glare, energy consumption, and optimised optics to provide the light levels and uniformity appropriate for each task,” said Garcia. “Additional consideration was taken to ensure the integration of occupancy sensors within the light fixtures.”

The park’s programmatic needs and proximity to adjacent properties called for a transformative lighting strategy that not only enhanced the human experience at night but aided in sustainability goals and minimised light trespass.

As a steward to the environment and the various sustainability goals, the lighting design and lighting controls were strategically designed to minimise light spill into adjacent properties and minimise sky glow. Most luminaires were selected with appropriate optics and integrated shielding or strategically positioned, where they were either oriented down or shielded by landscape or an architectural element.

Additionally, a wireless adaptive dimming control system was integrated into the luminaires and trellis to lower energy consumption and minimise light trespass within late-night hours. After hours, the lights are dimmed to 10% intensity, activated by movement detection – an invisible forcefield of motion sensors strategically located within luminaires, signage, and the trellis. The lights then remain on at full intensity until five minutes of stillness. In addition to being 46% below the energy code, with this leading-edge exterior control strategy, the project achieved a 64% reduction of the overall connected load.

“Typically, adaptive dimming solutions (automatic occupancy driven dimming) have been widely used for indoor applications via occupancy sensing, but over the last few years it has become a widely viable solution for exterior applications,” continued Garcia. “Most of the dimming response in exterior environments has been used for street lighting, where the lighting control system dims the light at a specific time during the night. When motion is detected via occupancy sensors, each independent streetlight will dim up in response to the motion as the car approaches that individual light fixture. This technology provides operational cost savings and can also enhance safety. Imagine walking down a long pathway and seeing lights getting brighter. You can already be on alert that someone is coming towards you.”

Commenting further, Garcia said: “Architectural lighting design is a practice where we often engage both sides of our brain – art and science – and I like to say that we create poetry when we find the delicate balance between science and art. While designing, we must abide by local codes and ordinances, as well as best practices guidelines including energy codes, path of egress, or light trespass and sky glow requirements. As designers, we need to interpret these codes and guidelines to achieve the requirements properly, while designing for an inspired human experience. 

“Shadows and the absence of light is critical for exterior spaces as we must balance not only the lighting within our project, but also the lighting in our surrounding environment and how that impacts our design. As we create spaces, we should consider how to incorporate these elements into our designs, and how the end user will interact with them. Think of evenly illuminated, shadowless spaces such as hospital rooms, which start to feel almost sterile and undesirable to be in. Creating safe outdoor spaces through appropriate lighting for the project and community creates a desirable space while also giving a sense of security through visibility by incorporating a balance of horizontal and vertical illumination, long distance visual cues, and excellent glare control, something that we often lose by over lighting spaces. 

“Additionally, by incorporating various layers of lighting through the use of different colour temperatures, a brightness hierarchy, and various high and low-level nuance lighting, we can start using lighting to enhance not just safety, but also wayfinding and placemaking within our exterior environments at night.”

Through the extensive use of BIM modelling, collaboration between the design and construction team, and the use of various IoT technologies, the project sets out to be an example of the future of the urban environment. West End Square provides a venue for community connectivity and interaction in a challenging time of social distancing. Since its opening in the Spring of 2021, the park was immediately embraced by the community and serves as an economic driver for the neighbourhood. The lighting improves visual acuity and supports human wellness, as residents now benefit from access to this safe outdoor space to live, work and play well into the evening.

Reflecting on the project, Garcia told arc: “The resulting project is a beautiful and balanced space for interaction and work. I visited the park after it opened and just sat and observed how users interacted with the park, from people working on their laptops to others walking their dogs or even playing ping pong. Nothing is more rewarding than seeing the impact and life that properly illuminated spaces can bring outdoors. Light can make all the difference.

“I often look at Google reviews and see comments like these that bring a smile to my face: ‘Late evenings, the sun is perched behind a five-storey apartment building. The air is cool. The park is inviting as many visitors stop by to admire its beauty. The park has a calming effect on me, and I am sure others. I could sit for hours. I sat for hours.’” 

www.hlblighting.com

by Matt Waring

Atlas Passage, Turkey

An important landmark in the fabric of Istanbul, Atlas Passage has recently undergone a restoration. Lighting for the project was delivered by Lab.1 Lighting Design & Daylighting.

Atlas Cinema and Passage was built in 1870 as the winter mansion of Agop Köçeyan, one of the leading figures of the Istanbul Catholic Armenian community of the time. Opening on to Istikla’, the most famous street of Istanbul, the passage today has an important place in the hearts of Istanbul’s citizens.

As part of a wider restoration project led by Sold Lighting Design & Engineering, which was responsible for the lighting and electrical work of the entire structure, Lab.1 Lighting Design & Daylighting was invited to work on the entrance, passage circulation areas, and the special staircase hall leading to the cinema museum. 

The studio’s brief included several important points: the passage should be “remarkable”, inviting people in from Istiklal Street, and more specifically there should be a directive lighting design once inside. Alongside this, as temporary exhibitions can be held in the area, the lighting system needed to be flexible. Finally, since the team was working in a historical building, the surfaces could not be altered in any way.

As such, the Lab.1 team decided to produce a simple, inviting, and elegant lighting design. One of the most important aspects was to ensure the historical building was touched as little as possible. 

“We aimed to design lighting that would not steal the limelight from the building, yet work to enhance its architectural design,” said Elif Uyan, Co-Founder of Lab.1 and project lead for Atlas Passage. “For this, we analysed the building and its surrounding environment and tried to tune into what the building wanted from us.

“Our main goal was to reveal the form and details of the building itself. It was already remarkable and through the restoration project it had been stripped of all the excess that accumulated over the years. With the building’s beauty exposed, we didn’t want to start adding ‘role-stealing’ elements back in. We just focused on the light, showing the beauty of the structure.”

Because of the historic nature of the project, the Lab.1 team was not free to place lighting products wherever they wanted. The lighting was therefore designed in a linear concept, reflective of the architectural plan of the passage, emphasising the circulation line. The team positioned a track system in a detail that they discovered in the original state of the building. The spotlights mounted to this track system create illumination on the floor, while the indirect hidden light shows the specially restored vaulted ceiling. Thus, this linear axis extending from Istiklal Street to the other parts of the passage, was emphasised with simple and pleasant lighting merged with the building architecture.

In terms of the light fixtures chosen for this project, Lab.1 paid particular attention to competencies relating to light technique and quality; good glare protection for the spotlights; and the spotlights mounted on the track system needed to have flexible mobility.

While the passage and the building are not among the prime tourist buildings of Istanbul, they are areas that are of great importance and woven into the hearts and memories of most local citizens. The Lab.1 team felt a huge sense of responsibility while working on the project, with their plans checked multiple times before finalising.

“The project had a large-scale restoration, design and inspection team that we worked with for the first time,” said Uyan. “Everyone was very sensitive to the history of the building and in such an environment it wasn’t easy to explain our ideas and have them accepted. We tried to overcome this challenge by showing concept visualisations, examples of good projects and lighting simulations. 

“What was useful was to be able to physically show samples of the products and make small mock-ups. In this regard, the fact our project partner Sold, which invited us on to the project, was also the general electrical contractor, made our job much easier.”

In the end it was a project where the entire design team was involved in the process and believed in the end result. Uyan concluded: “The lighting helps to express the architecture’s existing beauty without competing with the structure.”

www.lightinglab1.com

by Matt Waring