por Mike Lydon
http://www.planetizen.com/node/33877
A proper bicycle network is comprised of four basic types of bikeways: bicycle lanes, bicycle boulevards, shared streets and off-street paths. Although bicycle use is not common in many American cities, planners and government officials must acknowledge that such activity is unlikely to increase without a sufficient bicycle network in place. Cities and towns interested in developing or expanding their bicycle network must consider plans that include all four types. Doing so creates a tapestry of options for the three types of bicyclists and their individual requirements (outlined in my previous post). Portland, Oregon and Berkeley, California experience some of the highest bicycle mode shares in the country precisely because they use a layered approach. Before continuing, it's important to loosely define each bikeway type.
