Turning Movement Counts on Shared Lanes: Prototype Development and Analysis Procedures

Turning movement count data is key to evaluating the performance of signalized intersections and is also a crucial component of data-driven decision-making processes of transportation agencies. Unfortunately, the availability of quality turning movement count data is not the norm for transportation agencies. The National Cooperative Highway Research Program (NCHRP) Innovations Deserving Exploratory Analysis (IDEA) Final Report 193: Turning Movement Counts on Shared Lanes: Prototype Development and Analysis Procedures explore development of a data collection device capable of logging vehicle trajectories from intersections instrumented with a commercially available radar-based vehicle detection system. The device can be installed inside a signal cabinet, is independent of the controller platform