As Portland built out bike lanes and pedestrian safety measures, fears about slower response times did not materialize.

A major city center without cars? Madrid is going to come close sometime in the next year, says the administration of Mayor Manuela Carmena.

The city is on the verge of releasing a design guide that will expedite implementation of protected bike lanes on 450 miles of streets.

In a city where streets are dreadful for pedestrians, the victims of dangerous walking conditions are mostly poor people, and public officials aren't responsive to the risks they face.

The National Transportation Safety Board is out with a preliminary report into how an Uber car in self-driving mode struck and killed Elaine Herzberg in Tempe, Arizona, this March.

Meet the party fighting for cheap gas and against global warming at the same time.

The streetcar is slow because it runs in mixed traffic. Atlanta's new light rail lines might also share lanes with cars.

Safe users, clear public spaces, equal access: cities should demand them all from bike share companies.

The "Stop Sexual Assault and Harassment in Transportation Act” would require transit agencies to take measures to protect riders and employees.

Lower parking requirements have encouraged construction of housing instead of car storage, but the reforms still face political resistance.

The old political instinct to cram more cars through cities never dies - not even in Portland.

How the 1970s oil crisis precipitated bad street design that endangers people to this day.