Journal of Transportation Systems Engineering and Information Technology

Journal of Transportation Systems Engineering and Information Technology ›› 2018, Vol. 18 ›› Issue (1): 158-165.

• Systems Engineering Theory and Methods • Previous Articles     Next Articles

Modeling of Operating Mode Distributions and Emission Estimation at Intersection

XU Yao-fang1, YU Lei 2, 3, SONG Guo-hua3   

  1. 1. Chongqing Jiaotong University, Chongqing 400074, China；2. Texas Southern University, Houston, TX 77004, U.S.A；3. Beijing Jiaotong University, Beijing 100044, China
  • Received:2017-07-19 Revised:2017-09-06 Online:2018-02-25 Published:2018-02-26

交叉口运行模式分布模型及排放测算

胥耀方*1，于雷2，3，宋国华3   

  1. 1. 重庆交通大学，重庆 400074; 2. 美国德克萨斯南方大学，休斯顿 77004，美国; 3. 北京交通大学，北京100044
  • 作者简介:胥耀方(1984-)，女，重庆人，副教授，博士.
  • 基金资助:

    国家自然科学基金/National Natural Science Foundation of China(51578052)；重庆市自然基金/Chongqing Science Foundation(cstc2013jcyjA00015)；重庆市教委资助项目/Fundation of Chongqing Education Commission(KJ1400328).

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Abstract:

Since traditional traffic parameters, such as flow and velocity can be easily obtained from road traffic networks, and alsothe Vehicle Specific Power (VSP)-based approach to calculate vehicle emissions is widely used in the state-of-practice emission models, the modeling results could be used directly in the calculation in emission models, which takes into account the different operation modes of the intersection, thus enabling the dynamic evaluation of emission benefits of traffic networks. Based on the character analysis of the operating mode distribution at intersections, the characteristic parameters of intersection operating modes are identified. Then, the intersection operating mode distribution model is established based on the Partical Swarm Optimization K-Means cluster algorithm. Compared with the real-world data, the errors of the emissions of HC, CO, NOx is 6.08%, 0.80%, 4.18% based on the proposed model, and 38.67%,28.87%, 12.22% based on MOVES respectively.

Key words: urban traffic, operating mode at intersection, VSP, average speed, emission estimation

摘要：

针对路网中可大规模采集的流量、速度数据，结合主流排放模型广泛应用的VSP参 数，提出了面向排放测算的交叉口运行模式模型，为动态评估路网中的交叉口排放提供了测 算依据.通过对交叉口区域的运行模式分布特征分析，提取交叉口运行模式关键特征参数，建 立基于粒子群聚类算法的交叉口运行模式分布模型.通过本模型和MOVES模型计算交叉口 排放，本模型预测HC、CO、NOx 污染物的误差分别为6.08%、0.80%、4.18%，而MOVES模型的 预测误差分别为38.67%、28.87%、12.22%.

关键词: 城市交通, 交叉口运行模式, VSP, 平均速度, 排放测算

CLC Number: