University of Minnesota

The Accessibility Observatory at the University of Minnesota is the nation's leading resource for the research and application of accessibility-based transportation system evaluation. Accessibility, which examines both land use and transportation systems, measures how many destinations, such as jobs, can be reached in a given time.

Access Across America

This series of reports ranks accessibility to jobs in major U.S. cities by mode:


Study finds big differences in effects of congestion on access to jobs by car

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The 2018 edition of Access Across America: Auto, which estimates the impact of traffic congestion on access to jobs, reveals some significant differences among major U.S. cities in how well they are coping with the problem. Read more about the study.

National Accessibility Evaluation

The National Accessibility Evaluation pooled-fund study measures accessibility to jobs across the entire U.S. Each pooled-fund partner has direct digital access to these detailed accessibility datasets.

The Accessibility Observatory is a program of the Center for Transportation Studies.