Recently we ran a survey on Bike Lanes vs. Bike Paths and had some discussions on the topic and also another survey on Sharrows.(Want to learn more on sharrows? See Google search) Next cycling infrastructure to mention is the Separated Bike Lane. In short, a separated bike lane is one that usually runs parrellel to a street however is physically separate from the auto traffic, making impossible for a car to imped the cyclists lane. Boulder has one separated bike lane on 13th street, see video below. Separated bike lanes have many benefits, largely in that they are safer which for many will encourage them to ride their bikes more.