Payton Chung

Cities on six continents are celebrating Park(ing) Day today, now in its tenth year of temporarily transforming curbside space for cars into public spaces for people. Some of the pop-up parks that caught our eye this Park(ing) Day include:

A new national survey released today by TransitCenter seeks to understand not just the who, but also the why, of Americans' increasing transit use. The survey found that Americans' feelings towards transit and cities vary considerably by age, personal values, and whether transit provides a feasible travel option in their neighborhoods. Factors that don't have much of an effect on transit use include having children at home, education level, having very high incomes, and the region of the country people inhabit.

A growing number of mayors want to make big strides on bike policy, and they need smart advocates to help them do it.

Despite continually growing ridership, Alta Bicycle Share-operated bike-share systems across America will probably not be adding bikes or docks this year. The bankruptcy of Montreal-based Public Bike Share Company, known as Bixi, which developed and manufactured the equipment that Alta's systems use, has disrupted the supply chain that numerous cities were pinning their expansion plans on.

All across America, cities are investing in new transit lines. Which of these routes will make the biggest impact by attracting large numbers of new riders? A landmark report from a team of researchers with the University of California at Berkeley identifies the factors that set successful transit investments apart from the rest.

"Recovering architect" and street design expert Ben Hamilton-Baillie launched a broadside against the rules of traffic engineering during a plenary speech to the Congress for the New Urbanism's recent annual meeting in Buffalo. Baillie urges widespread adoption of "shared space" -- a design concept popularized by Hans Monderman over the past generation in the Netherlands that has only just begun to make headway in the United States.

Any bicyclist knows that maps can be quite deceiving at first glance. The first time I tried to traverse San Francisco on a bicycle, I foolishly set out from the bike-rental shop on Fisherman's Wharf with a basic street map, and decided that I'd avoid downtown traffic by heading south across the grid. While I was correct that the city's connected street grid offered many direct routes, I neglected to notice the huge ridge of Pacific Heights looming directly ahead, or the numerous full-stop intersections along the way that would further sap my momentum.

All across America, city buses are waiting. Waiting at stoplights, waiting behind long lines of cars, waiting to pull back into traffic, waiting at stops for growing crowds of passengers. And no, it's not just your imagination: Buses are doing more waiting, and less moving, than they used to. A recent survey of 11 urban transit systems conducted by Daniel Boyle for the Transportation Research Board found that increased traffic congestion is steadily eroding travel speeds: The average city bus route gets 0.45 percent slower every single year. That's especially discouraging given how slowly buses already move, with a typical bus averaging only 13.5 mph.

Streetsblog's Parking Madness competition has highlighted the blight that results when large surface parking lots take over a city's downtown. Even though Rochester, winner of 2014's Golden Crater, certainly gains bragging rights, all of the competitors have something to worry about: Cumulatively, the past 50 years of building parking have had a debilitating effect on America's downtowns.