Brad Aaron

It's all bikes, all the time on the Network today.

The problem of inadequate infrastructure is not unique to the United States. Nor is the scourge of political dysfunction that leaves commuters stranded waiting for the next bus, pedestrians sprinting across eight lanes of traffic, and motorists stuck in gridlock.

With the rising popularity of bike-share systems around the world, one inevitable issue is the availability of helmets. This is particularly true in the United States, where a bare-headed cyclist is considered a daredevil miscreant who’s practically begging for trouble.

A couple of car-related ads in heavy NFL rotation caught my attention mostly for their emphasis, intended or not, on car-free transportation.

This week marked the 109th anniversary of the first presidential motorcade, starring Theodore Roosevelt. If you've ever wondered why TR's successors so rarely ditch their limos in favor of human-powered transport, read on. Staged photo op or no, it seems being elected president is a great way to spoil a family outing.

When it comes to traffic signage, is less more?

When I find myself complaining about city subway or bus service — while waiting too long for the bus or watching helplessly from one train as the one I need to transfer to leaves the station — I try to keep in mind that, maybe above all else, the relative ease of car-free mobility is the reason I live in New York. Jarrett Walker of Human Transit might say that, by having the choice to make my home in such a place, I have reached the self-actualization level on the Transit Hierarchy of Needs.

The horrific death of a 44-year-old resident of South Miami has enraged cyclists across South Florida, igniting a debate over street safety in a region historically dominated by devil-may-care drivers.

Concerns arose not long after it hit the market. External studies seemed to confirm what industry insiders feared: The product could pose a public health risk. But as sales soared, whistleblowers who didn't leave their jobs were forced to keep quiet. Companies maintained a posture of denial as a mountain of damning evidence, some of it from their own investigations, kept growing. Bowing to pressure, some consented to warning labels and other notices, but still insisted that claims of product-related injuries and deaths remained unproven.