Check out this video (a mix of live action and animation) about "cycle tracks." Cycle tracks are dedicated, protected bike lanes located between sidewalks and parked cars.  They are a species of buffered bike lanes.  In this video, Catherine Ciarlo, Transportation policy director in the Office of Mayor of Portland, Oregon’s office, explains how cycle tracks and buffered bike lanes work, and how they help create streets that are more efficient and safer for cyclists, pedestrians, and drivers.

On the Right Track from Mayor Sam Adams on Vimeo.

For more on cycle tracks, see the National Association of City Transportation Officials (NACTO) website on protected bikeways/cycle tracks and other emerging bikeway designs.