Shared Lane Marking

Shared Lane Marking

A shared-lane marking or sharrow is a street marking installed at locations in Australia, Canada, and the United States. This marking is placed in the center of a travel lane to indicate that a bicyclist may use the full lane.

According to the US Manual on Uniform Traffic Control Devices, shared-lane markings are used to:

  • Assist bicyclists with lateral positioning in a shared lane with on-street parallel parking in order to reduce the chance of a bicyclist’s impacting the open door of a parked vehicle;
  • Assist bicyclists with lateral positioning in lanes that are too narrow for a motor vehicle and a bicycle to travel side by side within the same traffic lane;
  • Alert motorists of the lateral location bicyclists are likely to occupy within the traveled way;
  • Encourage safe passing of bicyclists by motorists; and
  • Reduce the incidence of wrong-way bicycling.

The name sharrow was coined by Oliver Gajda, of the City and County of San Francisco Bicycle Program, and is a portmanteau of share and arrow.

Read more about Shared Lane Marking:  History, Effectiveness, See Also

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