"Shared Lane Markings (SLMs), or “sharrows,” are road markings used to indicate a shared lane environment for bicycles and automobiles. Among other benefits shared lane markings reinforce the legitimacy of bicycle traffic on the street, recommend proper bicyclist positioning, and may be configured to offer directional and wayfinding guidance.
|the bicycle markings seem to be causing some confusion for drivers|
The shared lane marking is a pavement marking with a variety of uses to support a complete bikeway network; it is not a facility type and should not be considered a substitute for bike lanes, cycle tracks, or other separation treatments where these types of facilities are otherwise warranted or space permits. The MUTCD outlines guidance for shared lane markings in section 9C.07."
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"On November 7, 2015, the 80th birthday of the MUTCD, and throughout the year when you see an easy-to-read sign, a bright edgeline marking on a foggy night, the countdown timer at a crosswalk, or a well-placed bike lane, take a moment to reflect on the eighty years of progress and innovation that the MUTCD embodies. This progress has resulted in safer, more efficient travel on our Nation's roads.
Over the years, the MUTCD has unknowingly become the traveler's best friend and silent companion, guiding us on our way along the streets, bikeways, back roads, and highways. As the direct means of communication with the traveler, traffic control devices speak to us softly, yet effectively and authoritatively. From glass “cat’s-eye” reflectors to glass beads to microprismatic sheeting, nighttime sign visibility has advanced significantly. Active devices at rail crossings save lives by giving us a positive message about train traffic. And countdown timers on pedestrian signals help us cross a busy street.
So the next time you hit the pavement, the path, or the pedals, you can be sure that the MUTCD, through our dedicated professionals who make complex decisions on what devices to install, will help you get where you want to go safely, efficiently, and comfortably! The MUTCD…it's all about you!"
- For the full set of guidelines on traffic markings http://mutcd.fhwa.dot.gov/
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