Travel Demand Management David A. King Arizona State University

Transportation Demand Management Policies to reduce automobility and balance multiple modes “Carrots” and “Sticks” to change travel behavior Greater focus on efficient use of existing infrastructure than expansion of new infrastructure

Matching Goals to Time Frame TDM may focus on short term results (mitigation) Auto restrictions to clean air Long term congestion management Road pricing or land use development

Who Makes TDM Policy? TDM implementation will vary by region Employer-based services Use of road toll revenue Roll of regional transit provider Land use regulations

Transportation Management

Changes in Trip Type TDM is commonly thought of as a commuting strategy: Commuting is declining as a share of total travel in many cities TDM policies must be careful not to “destroy” economically beneficial trips

Parking is Critical Ample parking makes driving cheap and easy Encourage shared parking Eliminate parking requirements Offer parking cash out to employees Promote redevelopment of parking lots

Key Takeaways for Practice Policies that raise the price of driving are most effective As long as driving is cheap, cities will struggle to reduce automobility TDM policies must be considered with the local context