University of Minnesota
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Access Across America

Accessibility is the ease of reaching valued destinations. It can be measured for various transportation modes, to different types of destinations, and at different times of day. There are a variety of ways to define accessibility, but the number of destinations reachable within a given travel time is the most comprehensible and transparent, as well as the most directly comparable across cities.

The Access Across America series measures accessibility to jobs via various modes of transportation in major metropolitan areas across the United States. As of 2015, work is funded under the National Accessibility Evaluation pooled-fund study.

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Walking

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