Xi’an University of Posts and Telecommunications 2 articles published in JoVE Engineering Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street Binghong Pan1, Juan Liu1, Hu Chai1, Yang Shao2, Ranyang Zhang1, Jiarong Li1 1 In this study, the effect of roadside parking on an urban street is analyzed. The entire process consists of traffic data gathering, data processing, operation simulation, simulation calibration, and sensitivity analysis. Engineering Determination of the Friction Coefficients of Icy Pavements Under Different Amounts of Snowfall Binghong Pan1, Hu Chai1, Bin Lu1, Yang Shao2, Juan Liu1, Ranyang Zhang1 1 Here, we present a method for determining the friction coefficient of pavements with different ice thicknesses indoors. The complete procedure includes the preparation of the equipment, the calculation and analysis of the snowfall, equipment calibration, friction coefficient determination, and data analysis.