Part of: Design Principles of Cycling [Draft Version]

Bi-Directional Protected Lanes

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Two-way bike lanes allow cycle movement in both directions, on one side of the road. Two-way lanes share some of the same design characteristics as one-way lanes, but may require additional considerations at driveway and side-street crossings. A two-way may be configured as a protected cycle track – at street level with a parking lane or other barrier – or as a raised cycle track to provide vertical separation from the adjacent motor vehicle lane. 

Bi-directional protected bike lanes are best suited for streets with long segments without access points, or where it is difficult for cyclists to cross the street. These include: one-way streets, parks, waterfront roads, wide boulevards and generally streets with fewer interruptions.

Bi-directional protected bike lanes have a standard minimum width of 2.5 meters, allowing for overtaking and riders in both directions. 

Bi-directional protected lanes separated from car traffic through physical barrier.


NACTO, Urban Bikeway Design Guide

Schepers et al. Road factors and bicycle—motor vehicle crashes at unsignalized priority intersections. Accident Analysis & Prevention. Volume 43, Issue 2, 2011.

Cities Safer by Design