“Transportation demand management,” or TDM, is a wonky yet useful phrase that encompasses a suite of transportation policies and programs that are a critical component of a systematic and equitable transportation strategy. Early TDM programs were designed to influence peak-direction travel away from the peak-congestion times or toward non-driving modes that could ease roadway congestion. Over time, TDM has expanded to apply more broadly to policies and programs designed to support and incentivize healthier, more environmentally sustainable transportation behaviors. This broader focus now includes improving access for more than just typically white, suburban, white-collar commuters. By expanding its goals, TDM can and must expand who benefits by engaging often-marginalized communities, tailoring programs to serve them, and reinforcing that improving access for all benefits all.
Through the support of the Bloomberg Philanthropies American Cities Climate Challenge, Nelson\Nygaard and the Natural Resources Defense Council developed The New Transportation Demand Management: An Implementation Guide for City Officials. This Implementation Guide is intended to help local leaders understand the state of TDM practice, work with their communities and local stakeholders to identify the TDM measures that might help advance shared goals, and then implement those measures effectively.