Signs going up in McKinney remind motor vehicle drivers that state laws give bicyclists the right to use a full lane on roads. The aim of the new signs is to help keep the roads safe for both riders and drivers.
This signage is in accordance with the Texas Manual on Uniform Traffic Control Devices, a document issued by the Texas Department of Transportation to specify the standards by which traffic signs, markings and signals are designed, installed and used.
Shared lane pavement markings (sharrows) were federally approved and adopted after research by the U.S. Department of Transportation revealed that sharrows significantly increase the passing space between motor vehicles and bicyclists. They also reduce improper bicycle behavior such as riding on the sidewalk or riding the wrong way on a street.
Sharrows are bicycle symbols carefully placed to guide bicyclists to the best place to ride on the road and avoid car doors. They also serve to remind drivers to share the road with cyclists. Unlike bicycle lanes, sharrows do not designate a particular part of the street for the exclusive use of bicyclists. They are simply a marking to guide bicyclists to the best place to ride and help motorists understand that they may see and should expect to share the lane with bicyclists.