The purpose of the markings is to create improved conditions for bicyclists by clarifying where they are expected to ride and to remind motorists to expect bicyclists on the road. In the absence of bicycle lanes, motorists often neglect to safely share travel lanes with bicyclists, which can compel bicyclists to ride closer to parked motor vehicles. Such a scenario can result in a dooring crash if someone opens a vehicle door as the bicyclist passes. Also, when bicyclists stay to the far right in narrow travel lanes, passing motorists often track too closely to the bicyclists. This can be unnerving for bicyclists, leaving little margin for error, and sometimes leading to crashes.