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NCUTCD Bicycle Technical Committee

Shared Roadway Marking

Name:

Shared roadway marking - also formerly known as the "shared lane arrow", "shared use arrow", "sharrow", "shared lane symbol", "shared lane marking", "bike in a house"

Status:

EXPERIMENTAL - not approved for use except under written experimental authorization by Federal Highway Administration in accordance with Section 1A.10 of the MUTCD. Requests by public agencies to experiment with this marking will help provide additional research data - contact Pete Rusch at FHWA for more details.

Proposed Shared Lane Marking language and figure (467K PDF)

Studies and Reports:

Caltrans policy directive allowing use of shared roadway markings in California

San Francisco, CA study - "San Francisco's Shared Lane Pavement Markings" (1.2 MB PDF)

San Francisco, CA study - "Report on Human Factors Comparison on Perceived Meaning of Three Alternative Shared Use Symbols" (184K PDF)

John S. Allen - Summary of bicycle-car door collision research

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Updated 16 July 2006