Streetfilms

Earlier this month, the New York City Department of Transportation announced plans to experiment with 20 mph zones -- replacing the city's default 30 mph speed limit in one pilot neighborhood. Whoever gets the first 20 mph treatment will see benefits that residents of British cities and towns have become increasingly familiar with in recent years.

In the UK, the non-profit Sustrans is pioneering a community-based method to reclaim streets from high-speed traffic and make neighborhoods safer and more sociable places. Called "DIY Streets," the program brings neighbors together to help them redesign their streets in a way that puts people, safety, and streetlife first.

In Copenhagen, you never have to travel very far to see a beautiful public space or car-free street packed with people soaking up the day. In fact, since the early 1960s, 18 parking lots in the downtown area have been converted into public spaces for playing, meeting, and generally just doing things that human beings enjoy doing. If you're hungry, there are over 7,500 cafe seats in the city.

Ever find yourself waiting for the next bus, not knowing when it will arrive? Think it would be great if you could check a subway countdown clock from the sidewalk? Or get arrival times on your phone? Giving transit riders better information can make riding the bus or the train more convenient and appealing. And transit agencies are finding that the easiest and least expensive way to do it is by opening data about routes, schedules, and real-time locations to software developers, instead of guarding it like a proprietary secret.