Speaking

The Clark County-Springfield Transportation Coordinating Committee (CCSTCC) sought to identify locations where single-lane roundabouts would improve safety, efficiency and mobility across Clark County, Ohio. This presentation will share how through the use of a statistical methodology and publicly available GIS data, the team created a list of key screening criteria and a weighted ranking to analyze a majority of the intersections across the county. This dynamically weighted system allowed the team to create different priority scenarios and see in real time intersections that continually come to the top of the list regardless of the scenario.

Public feedback captured through an interactive ESRI webpage and survey provided additional data points to identify intersections for roundabouts. The team narrowed over 5,000 intersections down to a prioritized "Top 50" list of intersections to consider for improvements. After a dashboard review and input from a core stakeholder group, preliminary layouts at the top 14 locations were developed to provide costs and confirm implementation feasibility.