计算机模拟:交通相关空气污染与交通信号周期时间的优化

Lkhamsuren Munkhtuya, Sharav Byambaa
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引用次数: 0

摘要

机动车排放是城市最重要的空气污染源之一,在大型城市日益成为一个日益严重的问题。排放量受交通车辆数量、车辆技术、高速公路和交叉路口的几何和交通状况以及环境因素的影响。交通流大多在当地交通的十字路口中断,特别是在城市中心。与不间断的车流相比,这些交通行为发生改变、车辆走走停停的地点的排放量更高。在本研究中,120个路口的当前状态排放由SIDRA Intersection软件确定。然后,对信号进行改进后,用相同的软件确定新的排放量。根据研究结果,计算了改进前后的油耗和污染物排放。根据在路口的观测结果,计算出当前状态油耗为1718.2 l/h,上午的CO2、CO、HC和NOX排放量分别为40464.7、3.821、0.482和5.060 kg/h。之后,计算当前状态油耗为1492.1 l/小时,当晚CO2、CO、HC和NOX排放量分别为3522、3.116、0.406和3.246 kg/小时。经测定,目前的状态与改进后的状态有显著差异。改善十字路口的几何条件或信号可以减少车辆排放,改善城市的空气质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
COMPUTER SIMULATION: TRAFFIC-RELATED AIR POLLUTION AND THE TRAFFIC SIGNAL CYCLE TIME OPTIMIZATION
Emissions from motor vehicles, one of the most important air pollution sources in the city, is emerging as a growing problem in large-scale cities. The amounts of emissions are affected by the number of vehicles in traffic, vehicle technology, geometric and traffic conditions of highways and intersections, and environmental factors. Traffic flow is mostly interrupted at Intersections in local traffic, especially in city centers. Emissions of these points, where traffic behavior is changed and vehicles stop and go, are higher as compared to uninterrupted flows. In this study, current state emissions at 120 Intersection were determined by SIDRA INTERSECTION software. Then, new emissions are determined by the same software after improvement in signalization. As a result of the study, fuel consumption and pollutant emissions were calculated before and after improvement. As a result of observations at the intersection, current state fuel consumption was calculated as 1718.2, l/hour, and CO2, CO, HC, and NOX emissions were 40464.7, 3.821, 0.482, and 5.060 kg/hour respectively for the morning. After that current state fuel consumption was calculated as 1492.1, l/hour, and CO2, CO, HC, and NOX emissions were 3522, 3.116, 0.406, and 3.246 kg/hour respectively for the evening. It has been determined that there were significant differences between the current state and after improvement. Improvements in geometric conditions or signalization at intersections may result in a decrease in vehicle emissions and improve the air quality in cities.
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来源期刊
Pharmacy World & Science
Pharmacy World & Science 医学-药学
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