On April 8, Cambridge, Mass. became the first city in the United States to pass a law mandating protected bike lanes. The "Cycling Safety Ordinance" constitutes that a protected bike lane must be installed whenever any reconstruction is done to any of the roads within the city's previously identified Cambridge Bicycle Plan.

The Cambridge Bicycle Plan is a proposed network of 20 miles of streets within the city. The new legislation states that any roads that will be rebuilt, expanded, or reconfigured within this bike plan, must have a protected bike lane. Only in "rare circumstances" will there not be a protected bike lane implemented.

Cambridge is a college town (Harvard) and a suburb of Boston. The city has a community development department that tracks bicycle trends and collects data. Their website can be found here: https://tinyurl.com/yxvxeh3g