Abstract
This report summarizes the conclusions of a study designed to evaluate and measure the impacts of different enforcement levels and strategies, engineering features, and public education programs on the compliance with restrictions associated with bus and carpool lanes and freeway ramp metering. The report finds people who use restricted lanes illegally have a more negative perception of lane restrictions than drivers who comply with them. Drivers are significantly more aware of in-place, in-view enforcement than of enforcement requiring ticketing on freeway shoulders.