Transportation demand management (TDM) is a set of strategies and policies that seek to reduce the number of single-occupancy vehicles on the road and promote more sustainable modes of transportation. TDM aims to manage the demand for transportation by encouraging alternatives to driving alone, such as public transit, biking, walking, carpooling, and telecommuting.
Transportation demand management is the toolkit, transit passes, carpool matching, bike facilities, flexible schedules, priced parking, that moves trips off the drive-alone stack. Fewer solo drivers means less parking to build. Illustrative mode shares.