COVID-19 was not the first pandemic to force changes in how we live: Communicable diseases have transformed urban planning before.

The Black Death outbreak in 14th century Europe saw narrow public squares transformed into larger public spaces better integrated with nature. The cholera outbreak in 19th century London prompted improvements to water-management infrastructure. And during the Spanish flu, residents eschewed cramped public transport in favor of walking in uncrowded streets.

Many of the practices in architectural and urban design prevalent now have evolved from similar measures taken throughout history to safeguard the health, hygiene and comfort of city dwellers. Now, researchers are turning their attention to suburbia.

“Cities have to learn how to balance the competing demands of social distancing, preserving the economy and promoting people’s well-being. … We argue that suburban design in the post-pandemic era should facilitate a balanced density level that is higher than the suburban norm but lower than that of traditional compact cities.”

A heavy Western influence

Despite the vast majority of the population continuing to reside in suburbs, retrofitting efforts to promote walkability and transit-oriented development are mostly limited to city centers. In GCC countries and the UAE in particular, suburbanization is the dominant development trend: suburbs occupy more than 50 percent of Abu Dhabi’s urbanized land and 40 percent of Dubai’s urban area.

“Both cities have a history of inviting and hiring consulting firms and foreign architects who were all trained in Western countries,” Alawadi says. “The grids and fragmented layouts that comprise the diverse set of neighborhoods in Abu Dhabi and Dubai are the same applied in city planning around the world.”

The need to rethink suburban design stemmed from the need to confront climate change, long before the emergence of the novel coronavirus. Suburbs have been harshly criticized for their social, economic and environmental impact, and in terms of physical planning ideals, one of the key criticisms is low pedestrian accessibility.

Detached, single-family housing — the primary form of the suburban landscape all over the world — has either been glorified as the icon of the American dream of vilified as a deplorable built environment, but the KU team argues suburbia should not be visualized as sprawling low-density settlements only.

“The potential to design suburbs in various forms and levels of density cannot be overlooked,” Alawadi says. “For example, new suburbs can be designed to feature interconnected street systems rather than fragmented and broken street networks. Accessibility plays a vital role in good urban form. Residents are more likely to walk or cycle when their local area is more accessible and the distance between origins and destinations is shorter.”

Increasing accessibility

Accessibility and mobility go hand in hand: Mobility can be defined simply as how far you can go in a given amount of time, whereas accessibility is how easily one can get there. Research shows that, at neighborhood scale, accessibility has a significant influence on urban living, spatial equity, public health and walkability.

Comparing Abu Dhabi with Dubai, the researchers found that Dubai is more accessible overall but particularly when its network of alleys is considered. This suggests that better accessibility can be achieved by linking street networks with alleys between buildings.

“Walking within neighborhoods for recreational, fitness and utilitarian purposes is indispensable in a post-pandemic world,” Alawadi says. “The COVID-19 pandemic revived old debates in urban planning but there is an almost unanimous consensus regarding the need for walkable neighborhoods in post-pandemic cities. People want easy access to outdoor spaces, public parks and other destinations to meet their daily needs. Redesigned suburbs with more suitable infrastructure for local accessibility have the potential to serve as a viable housing option for the post-pandemic world.”