Fast Company staff writer Adele Peters takes a look at a different approach to overcrowding (of both people and buildings) in rapidly-growing cities: Specifically, a proposal from Swedish architect Anders Berensson that suggests moving pedestrian pathways from street level to rooftops may be the solution.

In Berensson's plan for Stockholm, a new suite of buildings of varying heights (to maximize light) are lined up over a railway leading to the city's central train station. A network of paths that cross from roof to roof turns the skyline into a new public park.

"Since we're building so centrally in Stockholm, it kind of belongs to all of Stockholm," Berensson says. "I thought the skywalk was a way to sort of give back something to all the people who will not live there. ... It's also a great possibility to look over Stockholm since we're building a high-rise town."

Read more >