
Designed to create subtle glimpses between the different sections of the station, the patterned openings – formed by 326 tri angular carvings in three different sizes – al so filter light gently into the atrium.


Cityscape of Riyadh with busy streets and modern skyscrapers on a sunny day. by Fahad Puthawala via Pexels


Designed to create subtle glimpses between the different sections of the station, the patterned openings – formed by 326 tri angular carvings in three different sizes – al so filter light gently into the atrium.


The smart city model has now moved beyond simple connectivity and automation toward the “cognitive city”—urban environments that not only collect data but learn from it and respond in real time.
Digital twins—virtual replicas of physical environments—anchor this vision, allowing operators to simulate traffic flows, monitor infrastructure, and optimize resource use.
“Digital twin technology is creating tangible value in areas such as urban planning, infrastructure optimization, and predictive maintenance by enabling simulation and real-time operational insights,” says Mosab Erar, vertical business director at Hikvision MEA.
Yet the path forward is not without hurdles. “Key limitations often stem from fragmented systems and data silos, which require strong data governance frameworks and seamless cross-platform integration to fully realize the potential of digital twins in complex urban environments,” adds Erar.
As cities become increasingly connected, Yasser Elsheshtawy, an adjunct professor at Columbia University, warns that planners should not treat older cities as blank slates for new technology.
“Retrofitting smart infrastructure into long-established cities such as Makkah or Riyadh is fundamentally different from building a new city like NEOM because existing urban environments are shaped by lived practices, informal adaptations, and deeply rooted social relationships,” he says.
His concern is that pursuing efficiency could come at a human cost. “The biggest challenge is that ‘smart’ systems can easily become overly technocratic, prioritizing efficiency and centralized control at the expense of people’s sense of ownership over their neighborhoods,” says Elsheshtawy.
“The goal should be to enhance flexibility, resilience, and everyday usability—allowing technology to enable urban life rather than dominate it quietly.”
While megaprojects like NEOM, Qiddiya entertainment city, and Red Sea Global signal the scale of Saudi Arabia’s ambition, the most meaningful changes are those transforming everyday life.
For example, Riyadh is developing New Murabba as a 15-minute city, where people can access everything they need on foot. In reality, planners are taking this idea even further.
Mustafa Chehabeddine, design principal at global architecture firm KPF, explains that the first residential district at Riyadh’s new downtown functions as a network of five-minute communities.
“KPF is designing Community 2, the first residential community at New Murabba, as a 15-minute city,” he says. “But, during Riyadh’s hot season, the challenge is to make the radius even smaller.”
To counter extreme heat, the design prioritizes proximity and comfort through shaded, accessible spaces. “We’re implementing five-minute communities within the neighborhood, with pedestrian heat refuges provided every one or two minutes, whether that’s a shop, shaded landscape area, or protected courtyard,” he explains.
The approach blends traditional courtyard urbanism with new technologies such as motion-activated misting systems and cooling fans, ensuring walkability even in the hottest weather.
It’s one thing to build a city from the ground up, but quite another to modernize long-established urban centers.
“Retrofitting established cities such as Makkah and Riyadh comes with challenges, including infrastructure constraints, integration with legacy systems, and the need to minimize disruption to daily operations,” says Erar.
Bruce Fisher, design principal at KPF, points to the structural consequences of decades of car-centric planning, particularly in cities like Jeddah.
“Jeddah is a sprawling, largely gridded city built on an urban planning model of square super-blocks, wide roads, and highways that have pushed the city steadily northward over the past four decades,” he says.
He adds that the city is “primarily a car-centric, largely unwalkable city.”
“To meet even the minimum standards of a smart city, it must densify in strategic locations capable of supporting transit-oriented development.”
Sometimes, the best solutions come from the past as well as the future. Fisher points to Jeddah’s historic Al Balad district, with its winding, shaded, walkable streets, as a good example of people-friendly urban design.
“Transit is the critical enabler of this kind of smart, culturally resonant, and environmentally responsive urbanism — one that puts people, rather than cars, at the center of urban form,” he says. “A kilometer of mass transit may lack the visual drama of a kilometer-tall tower, but the two work best in tandem — transit unlocks the density.”
Currently, over 85% of daily trips in Riyadh are made in private cars.
Saudi Arabia is investing in AI-powered transportation and public transit. In 2025, WeRide started a robotaxi service in Riyadh with Uber, and the Saudi company Front End announced plans to use autonomous aerial vehicles.
Elsheshtawy believes the real challenge remains behavioral. “AI-driven mobility can optimize traffic flows, improve safety, and enhance coordination across transport networks, but congestion will persist if people continue to rely overwhelmingly on private cars,” he says.
He argues that public transport requires more than efficient systems. “It demands convenient last-mile connectivity, walkable environments, shaded pedestrian routes, mixed-use development around transit hubs, and a cultural shift that makes public transport a desirable option.”
Projects such as the Riyadh Metro offer a glimpse of that future. By combining data-driven mobility, multimodal integration, and transit-oriented development, the system aims to change how the city moves. It’s real “smartness,” Elsheshtawy notes, lies in its potential to reconfigure urban behavior—encouraging a shift away from car dependency.
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A standout feature of this network is the 33-kilometer Olympic Cycling Track, which holds the Guinness World Record for the longest continuous cycle path

The Public Works Authority, Ashghal, has delivered more than 1,808 kilometers of pedestrian and cycling tracks between 2020 and 2025 in Doha, Qatar. This project is not merely an infrastructure task but a strategic alignment with the Qatar National Vision 2030.
A standout feature of this network is the 33-kilometer Olympic Cycling Track, which holds the Guinness World Record for the longest continuous cycle path. It is a dedicated 7-meter-wide, bidirectional path separated from traffic.
The track includes 29 underpasses and five bridges, allowing cyclists to ride continuously without stopping at intersections. The route is fully illuminated for night cycling and includes 100 benches and 20 rest areas.
The development comes as part of its ongoing efforts to enhance road safety and provide a safer, more sustainable mobility environment for all road users, while developing a modern and integrated road network that supports sustainable transportation across cities and residential areas. The paths are strategically designed to link with the Doha Metro stations and major bus hubs, facilitating “first and last-mile” connectivity for commuters.
The network includes both shared pedestrian and cycling paths, as well as dedicated cycling tracks. Also, it has successfully integrated pedestrian and cycling tracks into highway, main road, and local road projects. This has improved accessibility for pedestrians and cyclists, while enhancing safety and traffic flow on Qatar roads.
Some of the top cycling routes in the country are 5/6 Park (1.1km), Lusail International Circuit (5.3km), Olympic Cycling Track (33km), Al Bidda Park (5km), Aspire Zone Park (5km) and Al Khor Road (38km – track integrates with Olympic track).
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A historic tower in Diriyah, Saudi Arabia, framed by tree branches under a bright blue sky. by Abdul7amid Al Fadhly via Pexels
PIF-owned Diriyah Company has awarded a $490 million (SAR 1.84 billion) construction contract for the Saudi Arabia Museum of Contemporary Art (SAMoCA), in Diriyah.
The contract has been awarded to a joint venture between Albawani Company Ltd. and Hassan Allam Construction Saudi L.L.C., reflecting Diriyah Company’s ambition to develop a major cultural destination that attracts visitors and supports long-term growth.
SAMoCA is a flagship project by the Museums Commission. It aims to document, research, exhibit and champion Saudi modern and contemporary art. The museum will serve as a premier center of artistic exploration while supporting Saudi artists across generations to imagine and shape the nation’s creative possibilities.
Diriyah Company is developing the Diriyah project, the birthplace of the Kingdom of Saudi Arabia and a major historical, cultural and lifestyle destination. Diriyah is one of five giga-projects – together with ROSHN, Red Sea Global, Qiddiya and NEOM – that are driving expansion and diversification of the Saudi economy. Diriyah’s broad mission underscores its commitment to ensuring successful business outcomes and sustainable growth under the strategic direction of Vision 2030.
The museum, designed by the U.K.-based firm Godwin Austen Johnson with multidisciplinary support from Rafaat Miller Consulting, will have a gross floor area of 45,252 square meters and a total built-up area of 77,428 square meters. Notably, SAMoCA has recently achieved Mostadam Gold sustainability certification at both the design and construction stages.
The new museum at Diriyah will serve as the flagship home of SAMoCA, while SAMOCA at JAX Center continues to operate as a dynamic exhibition space in Riyadh’s creative district.
Commenting on the long-term impact of this new cultural asset, Jerry Inzerillo, Group Chief Executive Officer of Diriyah Company, said: “The Saudi Arabia Museum of Contemporary Art will provide Saudi and international artists with a truly world-class platform – one that invites global voices to engage with the Kingdom as it is today. This iconic asset will further elevate Diriyah’s reputation as the Kingdom’s capital of culture – and underscores our unwavering commitment to developing a vibrant city that serves our community, and the nation at large.”
Eng. Abdullah bin Abdulaziz Al-Hammad, Chief Executive Officer of the Museums Commission, added: “The Saudi Arabia Museum of Contemporary Art will be the epicenter of Saudi modern and contemporary art. Set against the historic legacy of Diriyah, it is designed to document and champion generations of Saudi artists, from pioneers to emerging voices, while inviting international dialogue into that story. We are committed to ensuring this dynamic platform remains accessible and inspiring for all.”
Diriyah, the $63.2 billion integrated urban development, has now awarded over $29 billion in construction contracts. Once complete, the ‘City of Earth’ will contribute approximately $18.6 billion (SAR 70 billion) directly to Saudi Arabia’s GDP, create more than 180,000 jobs, be home to an estimated 100,000 people, and welcome 50 million annual visits.
It will include museums, shopping districts, a university, the Diriyah Opera House, the Diriyah Arena, a variety of food and beverage outlets, and 34 world-class resorts and hotels spanning its two main masterplans.
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Panoramic skyline of Gurugram with clear blue skies and vibrant cityscape by Lokesh Kumar via Pexels

Architecture transforms space, yet sustainability is an invitation to restraint: a fundamental challenge of contemporary construction opens up between these two principles. We discussed this with Professor Ena Lloret-Fritschi and Professor Muck Petzet, Director and Co-Director of the new Institute of Sustainable Architecture and Technology (IAST) at the USI Academy of Architecture, in a contribution produced in collaboration with laRegione.
Architecture is, by definition, an act of transformation. It shapes space to meet human needs, designing buildings and environments of various types and uses. Yet, every construction intervention inevitably involves a loss: something is altered, removed, or destroyed. Sustainability, on the other hand, aspires to minimise environmental impact. Bringing these two concepts together reveals a fundamental tension-almost an oxymoron-between the drive to build and the imperative to preserve.
We discussed this tension, as well as the meaning of sustainable architecture today and future challenges, with Professor Ena Lloret-Fritschi and Professor Muck Petzet. The institute-officially inaugurated on 16 April-brings together expertise in heritage, construction, reuse, structural engineering, and digital technologies, aiming to approach sustainability in an integrated, multidisciplinary way.
For Prof. Muck Petzet, the result of pairing architecture and sustainability defines an important starting point. “Building new structures requires considerable resources and energy and therefore has a significant environmental impact. Quoting Luigi Snozzi: ’Every intervention involves destruction; destroy with intelligence.’ As architects, we have a responsibility to question the necessity of the act itself. We must ask ourselves if an intervention, and particularly a new construction, is truly necessary, or if we can work with what already exists.” In this view, reuse is not just one choice among many, but the priority approach. Prolonging the life of buildings by adapting them and preserving their material and cultural value reduces both emissions and resource consumption. “Temporary structures concentrate their emissions into a short window, whereas durable buildings allow that environmental cost to be spread over time,” observes Muck Petzet. Sustainability, in this sense, begins with continuity rather than replacement.
Prof. Ena Lloret-Fritschi, for her part, frames the issue from a complementary perspective, focusing on how to act when intervention becomes necessary. “Practising sustainable architecture means, first and foremost, becoming aware of the impact of every single intervention.” The challenge isn’t about avoiding transformation altogether; instead, it’s about defining concrete paths to act with responsibility and precision, aware of the environmental price of every choice. This requires the development of tools that foster a deeper and faster understanding of existing buildings, revealing their structures, constraints, and potential from the earliest stages of the design process. Thanks to digital technologies and AI integration, it is now possible to thoroughly analyse a building in the preliminary phases, thereby defining targeted intervention strategies. In this light, technology becomes the driver of more conscious and informed action.
At IAST, this approach follows a clear hierarchy of interventions: first, reuse and repair; then, transformation; and, only as a final stage, demolition and new construction. In this context, sustainability is not an accessory, but the very essence of the principles that guide every choice at every level of design. This also implies a change in mindset regarding what we preserve, what we transform, and what we remove. Instead of maximising production, the focus shifts to reducing material use, responsible material selection, and optimising structural systems. The goal is not merely to contain impact, but to create resilient architectures-works capable of lasting, being repaired, and evolving with the climate. In this new paradigm, structural simplicity and robustness become the guiding criteria to eliminate complexity and reduce maintenance costs whenever possible.
More broadly, IAST’s work is part of a larger disciplinary shift toward a culture of durability. Buildings are increasingly understood not as short-lived objects, but as structures that should endure, adapt, and be valued over time. This transition is the subject of heated debate regarding post-war building stock. Although often considered obsolete or lacking aesthetic merit, these structures contain precious materials and large amounts of stored carbon; their recovery therefore represents an extraordinary opportunity for the environment. In this context, the work developed at the institute spans different but closely related domains. It includes the conservation and transformation of modernist buildings, where repair becomes a central strategy, as well as the careful evaluation and adaptation of existing structures alongside the design of new ones. Structural considerations play a key role at all levels of intervention, ensuring safety, durability, and the efficient use of material resources.
This perspective also extends to more recent building heritage. Many structures from the 80s and 90s are reaching a point where intervention is necessary, yet they are often demolished to allow for urban densification. This raises an important question: how can we balance the need for transformation with the responsibility to preserve and reuse what already exists? For Prof. Lloret-Fritschi, sustainability is also “a matter of processes and material flows,” from extraction to transformation, assembly, and eventual reuse. Even when intervention is necessary, how materials are used becomes central. Ideally, this includes consideration of the entire life cycle, even if this remains a goal rather than a fully achievable condition.
Design, material, fabrication, and structural integrity must be conceived together. Geometry can become an important lever for reducing material use, while durability remains essential. In parallel, the production of structural elements must be conceived to promote a circular economy and reduce waste, aiming to optimise the use of matter. In this way, design choices are inextricably linked to construction processes and resource management. Prof. Muck Petzet completes this vision by emphasising the importance of context: “We can learn a lot from vernacular architecture,” he observes, pointing to the intelligence inherent in local materials and design capable of responding to the climate. At the same time, globally sourced materials remain an integral part of contemporary construction but require more careful evaluation: “Thinking sustainably also means resisting the logic of the cheapest option and considering the broader consequences, including the impact on local economies.”
This reflects a broader condition: while knowledge can circulate globally-supported by digital technologies-materials remain tied to the place. The task is therefore to navigate between these scales, making informed decisions that respond to both the context and its constraints. Energy remains an important aspect, but both architects emphasise that it is only part of the equation. Passive strategies-orientation, natural ventilation, and thermal mass-remain fundamental. The buildings themselves can act as environmental systems, regulating the climate through their material and spatial properties rather than relying exclusively on technical systems. For the Director of IAST, this implies rethinking design priorities: “Geometry, structure, and materials offer great potential, but they must be considered together from the start.” Performance should not be an afterthought added to a project, but integrated into its conception. In this sense, technology supports a more efficient and precise use of resources. At the same time, both USI professors emphasise that sustainability cannot be reduced to simplified certifications or metrics. “There is no single solution,” notes Lloret-Fritschi. “Sometimes it makes sense to use earth, sometimes wood, sometimes concrete: the key is making conscious choices.” Digital tools can assist in this process, but they do not replace judgment. And economic constraints remain a central challenge. Often, sustainability clashes with the logic of immediate savings. Reuse can be complex and expensive, while new construction is often cheaper. As Muck Petzet observes, “if we focus only on the lowest cost, sustainability becomes unreachable.” This highlights the need to shift from initial cost to long-term value.
Ultimately, the vision of the two architects converges on an essential point: sustainability is not an accessory to be added to a project, but a mindset (forma mentis) that pervades every phase, from the radical choice of whether to build or not, to the methods of intervention, to the building’s performance in the long term. The current transformation of cities, increasing resource constraints, and changed environmental conditions make this shift necessary and urgent. The question is no longer whether to build sustainably, but how to do so responsibly and realistically. For Prof. Muck Petzet, the direction is clear: “In the future, sustainable architecture will not remain a choice; it will become the norm.” Director Lloret-Fritschi adds that this transition will depend not only on innovation but also on the care with which we work with what already exists. At IAST, these perspectives merge. The institute positions itself at the intersection of heritage and construction, reuse and innovation, structure and technology, approaching sustainability not as a predefined model, but as a method of practice and research. It is an approach that begins with a careful understanding of what already exists, prioritises reuse and repair, and only then considers transformation and new construction, aiming to build less, build better, and build to last.
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