Cities

In an article for The Financial Times, Prof. Carlo Ratti writes about his group’s new research that “reveals that those over the age of 66 have more encounters with a broader cross-section of society than younger, working-age groups.” Ratti adds: “Armed with data that shows retirement expands opportunities for social interaction, cities could be designed to support this more deliberately. Retirement communities could be woven into student neighborhoods, for example, allowing knowledge to circulate across generations. Public spaces could be optimized to encourage everyday mixing.”

Prof. Kate Brown, author of “Tiny Gardens Everywhere,” speaks with Forbes reporter Alan Ohnsman of Forbes about the benefits of home gardens. Brown notes that people can “put in some healthy soils that are rich with compost, which feeds microbes and worms and black soldier flies, all these creatures that are in the soil so the soil is alive. Then you put in plants, trees, berry bushes, lettuces, greens, whatever. And when it rains, those healthy soils soak up a lot more water… [which is] great for flooding. They sequester a lot of carbon, more than any of our aesthetic alternatives. And of course, they can feed people.”

Writing for The Boston Globe, Prof. Kate Brown and David Greenwood-Sanchez of the University of Iowa explore the growing popularity of transforming residential yards into home gardens. They emphasize: “With food prices up 27 percent since 2020, it is a good time for Massachusetts legislators to consider protecting gardeners from vegetation restrictions so that they can grow plants that, in contrast to turf grass, nurture birds, bees, and the occasional rabbit — and their own families and neighbors.”

MIT researchers have developed a new traffic navigation system that more accurately reflects travel time by including parking data, reports Catherine Parotta for Boston 25. “What we can do is figure out if you’re best off trying this parking lot first, even if it’s farther than the closest parking lot,” explains Prof. Cathy Wu. Graduate student Cameron Hickert adds that: “We hope that this can help people make better decisions." 

In an opinion piece for The Boston Globe, MIT Prof. Carlo Ratti and University of Toronto Prof. Richard Florida explore the “paradox of overtourism.” Ratti and Florida note that: “Tourism accelerates global convergence — the same luxury retailers, hotel chains, and Instagram‑ready design cues that push cities to conform to international expectations. At times, it can even undermine more authentic local businesses, which cannot compete against much larger global competitors. Yet local distinctiveness does not vanish under global pressure; it adapts. The visual signatures that make one place different from another persist beneath the surface layer of brands. That is where efforts to manage tourism’s cultural impact should concentrate.” 

Prof. Christopher Knittel speaks with WBUR reporter Miriam Wasser about the benefits and risks associated with moving power lines underground. " We don't have to necessarily move to a system where everything is underground," says Knittel.  "What we really need to do is do a more targeted approach, which is identify the most critical lines in the network and do the cost-benefit test on undergrounding those."

Writing for The Washington Post, Senior Lecturer Robert Pozen explores the economic implications of blocking the opening of the Gordie Howe International Bridge, which links Detroit to Windsor, Ontario. “The new bridge is essential to modernizing the Michigan-Canada trade corridor,” writes Pozen. “It will create a second freeway-to-freeway link, thereby relieving bottlenecks and congestion on the old bridge.” 

MIT researchers have built “the first complete model of pedestrian activity in New York City,” a template that could be applied to any U.S. city, reports Elissaveta M. Brandon for Fast Company. “The model, which maps foot traffic across all sidewalks, crosswalks and footpaths in NYC during peak periods, reveals surprising patterns about the way people move around the city, as well as where they are most vulnerable to vehicle crashes,” explains Brandon. “It could have tremendous benefits for city planners.” 

Lecturer Jim Aloisi speaks with Boston Globe reporter Ian Prasad Philbrick about fare evasion on the MBTA, and a need for transit reform. “The drill here shouldn’t be to obsess or focus about how much,” says Aloisi. “The drill should be where can we make cost-effective interventions that matter?”

Nithya Raman MCP '08 has announced her decision to run for Los Angeles Mayor, reports Jill Cowan and Shawn Hubler for The New York Times. Raman “represents a district that encompasses a diverse array of neighborhoods, including some where immigrants live in dense apartments and some in the fast-growing San Fernando Valley, where wealthy Hollywood executives live in hillside bungalows,” they write. “That diversity, Ms. Raman has said, has given her unique insight into the needs of vastly different communities in the city of nearly four million.” 

Prof. Karilyn Crockett speaks with Boston Globe reporters Niki Griswold and Janelle Nanos about the city of Boston’s plans for economic development. “This is a moment to continue this focus and commitment and double down on it.” 

David Zipper, a senior fellow at the MIT Mobility Initiative, writes for Fast Company about the risks associated with introducing driverless vehicles to European cities. “Technological marvels they may be, but robotaxis are still cars and cars are a uniquely inefficient means of moving large numbers of people when space is at a premium,” writes Zipper. “By inviting robotaxis into their narrow, busy streets, European cities risk worsening congestion.” 

Prof. Carlo Ratti speaks with Reuters reporter Catherine Early about the growing number of initiatives aimed at creating more walkable neighborhoods in urban cities. “Small, tangible changes – like pedestrianizing a block, repainting a square, or hosting a street festival – help people understand what proximity feels like in practice,” Ratti explains. “When people are involved in shaping their environment, skepticism often turns into ownership.” 

Writing for Bloomberg, Prof. Carlo Ratti explores how street configuration and design can help reduce traffic speeds. “In studies we have conducted at our Senseable City Lab, we found that the posted speed limits often have little effect on how fast people drive,” writes Ratti. “Instead, the policies that work involve the design of the street itself.” 

Work from the MIT Senseable City Lab is featured in the new “Urban Natures” exhibition at Harvard University’s Druker Design Gallery. The exhibit spotlights how MIT researchers are measuring tree canopy cover in cities as part of an effort to design cities that are more sustainable and livable. The lab’s Treepedia project “uses digital tools to keep tabs on urban tree canopies the world over,” writes Mark Feeney for The Boston Globe.