Accessibility: From Ivory Tower to Practice

摘要

Metropolitan transportation is about providing safe and convenient access to jobs, goods, services, and other social and economic opportunities. In an ideal world we would use quantifiable measures of accessibility to develop the best projects and operational strategies, optimizing return on transportation investments. The good news is that such accessibility measures exist. They allow us to account for many factors that affects destination access-traffic congestion; transit service; proximity of origins and destinations; and accommodations for people who walk, bike or roll-so we can measure how well people can get where they need to go. And, armed with ever-better transportation and land use data, researchers are making great use of these measures. In fact, there are now upwards of 600 studies per year on the subject, up from 200 per year just a decade ago.(1)