Accessibility Analysis

SSTI’s thought-leading work in accessibility applies analysis at various scales, from small, individual projects up to regional plans and programs. We have also produced ways to use accessibility scores to forecast outcomes such as VMT and modal usage.

Use of multimodal accessibility metrics in project prioritization and investment

The Accessibility Observatory at the University of Minnesota recently released a one-of-a-kind report that ranks the country’s 50 largest metropolitan areas (by population) according to accessibility to jobs via bicycle. The report is a product of a multi-year study, where the researchers analyzed land use and transportation systems to measure accessibility to destinations via different modes. The researchers also incorporated traffic stress and bicycle comfort in measuring accessibility.

Researcher launches open source accessibility toolbox

DOTs and planning agencies interested in measuring access to destinations have a growing number of packages and data sources to choose from. Folks not looking to reinvent the wheel are turning to shiny products like Citilabs’ Sugar Access, Conveyal, and Remix. But those with tighter budgets and a little more technical expertise can build on existing platforms like OpenTripPlanner, UrbanAccess, and now the Accessibility Toolbox for R and ArcGIS, featured recently in Transport Findings.

Quantifying the quality and connectivity of sidewalks: walking accessibility indices

With the constant rise in obesity numbers and health concerns, planners and designers around the world are trying to bring back physical activity in day-to-day commuting behavior. Addressing health concerns through active transportation solutions not only brings us a step closer to a healthier community, but is also cost effective. Improving walking access to public transit stations is one such solution and was the theme of a paper published in the May issue of ITE journal.

COMMUTE bill would boost accessibility metrics

A new bipartisan bill in Congress would provide funding for DOTs and MPOs to apply innovative accessibility metrics to decision-making. It would require U.S. DOT to provide data and support for five state DOTs and 10 MPOs to measure access to destinations by various modes. Whether the bill passes or not, the field is likely to continue looking at accessibility as an important metric, and SSTI has been at the forefront of the effort to apply accessibility to transportation and land use decisions.