# [1]魏明,陈学武,孙博.一种车速截断对数正态分布的车队离散模型[J].东南大学学报(自然科学版),2013,43(4):885-889.[doi:10.3969/j.issn.1001-0505.2013.04.039] 　Wei Ming,Chen Xuewu,Sun Bo.Platoon dispersion model based on truncated lognormal distribution of speed[J].Journal of Southeast University (Natural Science Edition),2013,43(4):885-889.[doi:10.3969/j.issn.1001-0505.2013.04.039] 点击复制 一种车速截断对数正态分布的车队离散模型() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第4期

885-889

2013-07-20

## 文章信息/Info

Title:
Platoon dispersion model based on truncated lognormal distribution of speed

1东南大学交通学院, 南京 210096; 2南通大学交通学院, 南通 226019
Author(s):
1 School of Transportation, Southeast University, Nanjing 210096, China
2 School of Transportation, Nantong University, Nantong 226019, China

Keywords:

U491
DOI:
10.3969/j.issn.1001-0505.2013.04.039

Abstract:
To solve the shortcomings that the Paceys platoon dispersion model cannot well reflect partial normal distribution in the field situation, a platoon dispersion model based on a truncated lognormal distribution is presented by assuming that the speed follows the truncated lognormal distribution ranging from the minimum to the maximum. The research objects are the temporal and spatial distribution characteristics of queuing vehicles at the upstream intersection after the platoon moves from an upstream at green phase end time. From the density view,the effect of the speed statistical characteristics of these vehicles on the spread of cars along the downstream road is analyzed, and some formulas for calculating traffic flow parameters such as platoon density are presented. Then, the dispersion models of the front and the rear of the platoon are derived to provide traffic data for signal timing plans of the downstream intersection. Finally, by taking the coordination of successive signals for example, the computing traffic flow parameters of the proposed model are compared with those of the Paceys platoon dispersion model. The results of numerical simulation show that the former has less advanced and delayed time in optimizing signal timing plans.

## 参考文献/References:

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