信控交叉口进口道驾驶行为对尾气排放的影响

Effects of driving behaviors on exhaust emissions atimported lane of signal intersection

为研究在信控交叉口进口道处不同驾驶行为对尾气排放的影响,经过实地调查,获取机动车在信控交叉口进口道范围内瞬时速度,使用MOVES软件计算不同驾驶行为下机动车尾气排放污染物(CO、NO_x、HC)的排放速率。结果表明:机动车在信控交叉口进口道范围行驶过程中,减速决策下尾气排放污染物排放速率最小;机动车在研究范围内平缓行驶的尾气排放速率比加速行驶小。因此,通过规范驾驶员的驾驶行为,培养良好的驾驶习惯,合理控制车辆在信控交叉口范围内的加速度与速度,从而使小型车在信控交叉口进口道范围内的尾气排放达到最优。

In order to study the effects of driving behaviors on exhaust emissions,the instantaneous speed of motor vehicles in the imported lane of signalized intersection is obtained through field investigation.The emission rates of vehicle exhaust pollutants(CO,NO_x,HC)under different driving behaviors were calculated by using MOVES software.The results show that the exhaust emission rate of motor vehicles is the lowest under the deceleration decision in the process of driving at the imported lane of signalized intersection,and the exhaust emission rate of motor vehicles running smoothly in the study area is smaller than that of accelerated driving.Therefore,by standardizing drivers’driving behavior,cultivating good driving habits and reasonably controlling the acceleration and speed of vehicles in the range of signalized intersection,the exhaust emissions of small vehicles in the range of signalized intersection entrance can be optimized.