Sharing Excellence in Parking & Mobility Management

EPub: Road Diet

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A “Road Diet” reduces the size of a roadway to benefit other modes of transportation, reduce vehicle velocities and can also provide additional space for parking. This Informational Guide includes safety, operational, and quality-of-life considerations from research and practice, and guides readers through the decision-making process to determine if Road Diets are a good fit for a certain corridor. It also provides design guidance and encourages post-implementation evaluation. This publication is *FREE* for registered users of this website.

Description

While anti-intuitive for many, Road Diets can help support multi-modal transportation solutions. A classic Road Diet converts an existing four-lane undivided roadway segment to a three-lane segment consisting of two through lanes and a center two-way left turn lane (TWLTL). A Road Diet improves safety by including a protected left-turn lane for mid-block left-turning motorists, reducing crossing distance for pedestrians, and reducing travel speeds that decrease crash severity. Additionally, the Road Diet provides an opportunity to allocate excess roadway width to other purposes, including bicycle lanes, on-street parking, or transit stops. This Informational Guide includes safety, operational, and quality-of-life considerations from research and practice, and guides readers through the decision-making process to determine if Road Diets are a good fit for a certain corridor. It also provides design guidance and encourages post-implementation evaluation.