French Engineering, LLC (FE) performed the traffic and safety engineering for a corridor study on US 40 just outside of Uniontown, PA. This study included seven signalized intersections, six unsignalized intersections and two signalized diamond interchange ramps. As part of this project, FE evaluated a road diet on Business US 40 between the Uniontown Bypass and downtown Uniontown. The facility was four lanes with no sidewalks and numerous pedestrians walking in footpaths behind the curb. The proposed alternative included reducing the vehicular lanes to three–one lane in each direction with a two-way left-turn lane–with a wide sidewalk provided for the existing pedestrian traffic.
In support of the alternative analysis and safety study, FE used video cameras to collect traffic data and to gather 24-hour observations of the corridor to supplement field view observations. FE performed a comprehensive crash history review, used GIS to prepare a crash location map, and performed a qualitative safety analysis. The road diet capacity, which is a critical consideration at each terminus and the signalized intersections inside the reduced section, was evaluated using Synchro / SimTraffic.
FE used Highway Safety Manual analysis to perform a quantitative crash analysis of proposed alternatives and advance evaluation of the road diet and other alternatives for the corridor.