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选择了４条不同路面宽度的实验路段，测量四类代表车型的自由流稳态速度，确定了四类代表车型的希望速度，并分析得出路面宽度与希望速度的关系。
Four experimental sections with different pavement widths were selected to measure the free-flow steady-state velocities of the four representative models. The expected speeds of the four representative models were determined, and the relationship between the pavement width and the desired speed was analyzed.