Reducing the number of lanes
Reducing the number of lanes on an existing multi-lane roadway reduces crossing distances for pedestrians and can slow vehicles to appropriate speeds. For example, a four-lane, undivided road can be converted to one through lane in each direction with a center left-turn lane and bicycle lanes on both sides of the roadway.
Another option would be to reduce a four-lane, undivided road to one through lane in each direction with a center turn lane with short medians, left turn pockets, and bicycle lanes. This configuration eliminates the possibility of drivers using the center left-turn lane as a through lane, while providing a pedestrian refuge and a dedicated bicycle lane. If the roadway has no sidewalks, these may also be added.
If there are sidewalks with adequate room, a landscaped buffer may be installed to separate pedestrians from the travel lane. Roadway capacity is often unaffected, or improved, for volumes up to 15,000-20,000 vehicles per day.
Estimated cost: Minimal. Often only requires re-striping the lanes. When medians or refuge islands are used, costs of $15-$25 per lineal foot are common.