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Evaluation of vehicle acceleration models for emission estimation at an intersection

机译:评估交叉口的车辆加速模型以进行排放估算

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摘要

We evaluate the constant acceleration, linearly decreasing acceleration, and aaSIDRA models in terms of generating second-by-second speed profiles for emission estimations at an intersection. The models are first calibrated using field data from individual vehicle trajectories. With the calibrated models, second-by-second speed and acceleration data are produced, and emissions are estimated using MOVES. Emission estimations based on the calibrated acceleration models are then compared with those based on field trajectory data. The constant acceleration model tends to overestimate emissions; both the linearly decreasing acceleration model and the aaSIDRA model provide accurate emission estimations.
机译:我们根据产生交叉路口排放估算的每秒速度曲线来评估恒定加速度,线性递减加速度和aaSIDRA模型。首先使用来自各个车辆轨迹的现场数据对模型进行校准。使用校准后的模型,可以生成每秒的速度和加速度数据,并使用MOVES估算排放量。然后将基于校准加速度模型的排放估算与基于场轨迹数据的排放估算进行比较。恒定加速度模型往往会高估排放量;线性递减加速度模型和aaSIDRA模型均可提供准确的排放估算。

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