行驶周期是测算交通能耗和污染排放的重要参数。提出利用VSP分布来描述城市交通特性的方法,基于大量浮动车(FCD)数据对北京市快速路和非快速路交通特性进行深入分析,提出以VSP区间分布的加权均方根误差为指标,基于浮动车数据的行驶周期建立方法。然后分别针对城市快速路和非快速路,建立北京市机动车行驶周期。
Driving cycles is an important parameter for calculating road traffic energy consumption and emissions. The VSP Bin distribution is proposed to depict the urban traffic characteristics. Then traffic characteristics of Beijing urban expressways and non-expressways are analyzed based on the floating car data (FCD). The index of weighted root-mean squared error (WRMSE) of VSP bin distribution is used in the establishment of driving cycles. Driving cycles of urban expressways and non-expressways is constructed by using the proposed method.