The bills not only set up a process for measuring accessibility, but also a requirement for metro area Transportation Improvement Plans. Under the bill, TIPs would have to ensure that they improve non-auto accessibility (access to destinations by walking, biking, and transit) at least in proportion to auto accessibility.
SSTI has worked on destination access with many agencies around the country and applauds the federal interest in this critical metric. Accessibility better reflects benefits from the transportation network and land use changes than do conventional metrics, and it can be used to estimate outcomes such as vehicle miles traveled and modal usage. In contrast to most demand-model analysis, it is infinitely scalable, so of particular use in considering active transportation projects where trip distances are short.