Xi'an Shiyou University 1 article published in JoVE Engineering Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation Yang Shao1, Hongtao Yu1, Huan Wu2, Xueyan Han1, Xizhen Zhou1, Christian G. Claudel3, Hualing Zhang4, Chen Yang5 1 This protocol describes the process of solving a microscopic traffic problem with simulation. The whole process contains a detailed description of data collection, data analysis, simulation model build, simulation calibration, and sensitive analysis. Modifications and troubleshooting of the method are also discussed.