High Quality Content by WIKIPEDIA articles! A road diet is a technique in transportation planning whereby a road is reduced in number of travel lanes and/or effective width in order to achieve systemic improvements. A typical road diet technique is to reduce the number of lanes on a roadway cross-section. One of the most common applications of a road diet is to improve safety in the context of two-way streets with 4-lane sections. In this case, two travel lanes in each direction are converted into a 3-lane section with one travel lane in each direction, optional bicycle lanes, and a two-way turn lane in the middle. The two-way turn lane can be transitioned into dedicated left turn lanes (in countries that drive on the right-hand side of the road) at intersections. The additional space that is freed up by removing a vehicular travel lane can be converted into a bicycle lanes on either side of the roadway.

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