Shared lane marking
The shared lane marking is a roadway marking installed at locations in the UK, Germany, Australia, France, Switzerland and the United States. This marking is used within travel lanes shared by bicyclists and other vehicles.
In the English speaking world, the concept for this marking may have originally developed in
Portsmouthin the 1970s using standard bicycle logos painted on the road. This approach is still used in the UK, Australia and other countries. A variation developed in the US city of Denverin the 1990s consisted of an outline arrow with a bicycle symbol inside. In US usage, the wide shape of the arrow, combined with the bike symbol, gave rise to unofficial names such as "bike in a house" or "sharrow".
In 2004, the City of
San Francisco, Californiabegan experimenting with the shared lane marking, [ [http://www.bicycle.sfgov.org/site/uploadedfiles/dpt/bike/Bike_Plan/Shared%20Lane%20Marking%20Full%20Report-052404.pdf "San Francisco's Shared Lane Pavement Markings: Improving Bicycle Safety", February 2004] ] and developed a revised symbol consisting of a bicycle symbol with two sets of chevron markings above the bicycle.
The stated purpose of the Shared Lane Markings used in California were:
* 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 road users 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.
Based on the San Francisco experimental data, in August 2004 the California Traffic Control Devices Committee (CTCDC) approved the use of this marking in the State of California. [ [http://www.dot.ca.gov/hq/traffops/signtech/newtech/minutes/textMin081204.txt CTCDC Minutes, August 12, 2004] ] Several US cities are participating in Federally-approved experiments with this marking at this time, including: [ [http://www.atssa.com/page.ww?section=Resources&name=Interpretation%20Letters ATSSA webpage on MUTCD experimentation & interpretation letters] ]
Fort Collins, Colorado
Miami Beach, Florida
Ithaca, New York[ [http://bpac.rockwren.us/wiki/index.php?title=Shared_lane_pavement_markings Ithaca shared lane markings] ]
Spartanburg, South Carolina
Salt Lake City, Utah
Other US jurisdictions have also installed this marking, but are not participating in US federally approved or sanctioned experiments. There is a concern that the shared lane markings installed in some of these locations are not consistent with recent recommendations on marking design and positioning.
In January 2007, the US
National Committee on Uniform Traffic Control Devices(NCUTCD) endorsed the shared lane marking concept, and has recommended its inclusion in the US Federal Manual on Uniform Traffic Control Devices(MUTCD). [ [http://members.cox.net/ncutcdbtc/sls/slmtoncjan07.pdf NCUTCD Proposal on Shared Lane Markings] ]
The city of
Seattle, Washingtonincluded extensive use of shared lane markings in its Bicycle Master Plan of early 2007. [ [http://seattlepi.nwsource.com/local/314408_bikeplan05.html "Two more weeks to comment on city bike plan", Seattle Post-Intelligencer, May 4, 2007] ]
*This marking is not included in the current 2003 edition of the Federal MUTCD.
Federal Highway Administrationhas included the shared lane marking in a draft of a proposed new edition of the MUTCD [cite web |author=Federal Highway Administration |title=Notice of Proposed Amendments, Manual on Uniform Traffic Control Devices for Streets and Highways. |url=http://www.trafficsign.us/npa.html |accessdate=2008-01-02 ]
*Until the shared lane marking is formally adopted as part of a new edition of the MUTCD, use of this marking in the US is still considered experimental, and is permitted only under experimental authorization issued by Federal Highway Administration.
*Exception: This marking is authorized for use within the state of
Californiain accordance with Section 9C.103 of the California MUTCD. [ [http://www.dot.ca.gov/hq/traffops/signtech/mutcdsupp/pdf/camutcd/CAMUTCD-Part9.pdf California MUTCD, September 2006 edition, section 9C.103] ]
Segregated bicycle facilities
* [http://members.cox.net/ncutcdbtc/sls/index.html NCUTCD webpage on shared lane marking]
* [http://www.svbcbikes.org/crank/nov-dec-04/sharrows.php Beware of Sharrows by Kevin Jackson from Spinning Crank, newsletter of the Silicon Valley Bicycle Coalition and the Peninsula Bicycle & Pedestrian Coalition]
* [http://bike-pgh.org/campaigns/bicycle-advocacy/shared-lane-markings/ FAQ on shared lane markings created by Bike Pittsburgh and the Pittsburgh Dept. of City Planning]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Lane Cove Tunnel — Australian motorway motorway logo=Lane Cove Tunnel logo.png motorway= Lane Cove Tunnel length km= 3.6 length mi= 2 direction= West East start= destinations= end= opening date= June 2004 completion date= 25 March 2007 junctions= motorway owner=… … Wikipedia
Sharrow — For the village in North Yorkshire, see Sharow. For the shared lane roadway marking, see Shared lane marking .Location map|Sheffield align=left background=white lat= 53.36 long= 1.49 caption=Sharrow shown in Sheffield float=right width=300Sharrow … Wikipedia
Door zone — Cyclist riding in door zone Cyclist swerving to avoid door T … Wikipedia
Parks in Windsor, Ontario — Windsor s Department of Parks and Recreation maintains 3,000 acres (12 km2) of green space, 180 parks, 40 miles (64 km) of trails, 22 miles (35 km) of sidewalk, 60 parking lots, vacant lands, natural areas and forest cover… … Wikipedia
sharrow — n. A chevron and bike logo painted on a road lane to indicate that the lane is to be shared by both cars and bicycles. Example Citations: An ongoing safety measure being implemented in Thousand Oaks is the painting of sharrows on Thousand Oaks… … New words
Gibraltar — This article is about the British overseas territory. For other uses, see Gibraltar (disambiguation). Gibraltar … Wikipedia
Milton Keynes redway system — The Milton Keynes redway system is a 120 mile (190 km) network of cycleways/paths for cyclists and pedestrians in Milton Keynes, Buckinghamshire, England. It is generally surfaced with red tarmac, and criss crosses most of the city. A redway … Wikipedia
performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains … Universalium
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium
Bicycle-friendly — describes policies and practices which may help some people feel more comfortable about traveling by bicycle with other traffic. The level of bicycle friendliness of an environment can be influenced my many factors resulting from town planning… … Wikipedia