Development of Standard Performance Measures for Transportation Demand Management Programs

Abstract

Increasingly, performance measurement has become part of the transportation conversation, particularly as the measurement relates to the funding of programs and new projects. Political signs indicate that performance measurement is expected to play a greater role in the next U.S. surface transportation reauthorization legislation. Although there has been movement toward the adoption of performance measurement throughout the transportation industry, no standards exist. The challenge is to find comprehensive metrics that can be applied across transportation programs. Even within arenas such as transit, demand management, and highway, no standard for metrics exists. This study identifies trends in performance measurement for transportation demand management (TDM) programs (e.g., commuter outreach, ridesharing, telecommuting programs) to offer a starting point to move toward standardized measures. Although no two TDM programs are completely alike, the use of a specific set of measures as a baseline will help the industry to set both standards and expectations for performance. This study summarizes the findings from an analysis of performance measures used by 10 TDM programs in the United States; more than 130 measures were included. On the basis of those programs, the paper highlights trends and best practices seen around the country. The study concludes with recommendations for states, regions, and municipalities to consider in developing an outcome-focused approach to TDM performance measurement.