# [1]李鑫铭,陆建,王炜.公路车辆行驶临界速度计算模型[J].东南大学学报(自然科学版),2009,39(1):166-170.[doi:10.3969/j.issn.1001-0505.2009.01.032] 　Li Xinming,Lu Jian,Wang Wei.Computation model of highway critical speed[J].Journal of Southeast University (Natural Science Edition),2009,39(1):166-170.[doi:10.3969/j.issn.1001-0505.2009.01.032] 点击复制 公路车辆行驶临界速度计算模型() 分享到： var jiathis_config = { data_track_clickback: true };

39

2009年第1期

166-170

2009-01-20

## 文章信息/Info

Title:
Computation model of highway critical speed

Author(s):
Jiangsu Provincial Key Laboratory of Transportation Planning and Management, Southeast University, Nanjing 210096, China

Keywords:

U412.36
DOI:
10.3969/j.issn.1001-0505.2009.01.032

Abstract:
The highway critical speed is a physical quantity of the vehicle top safe speed which is defined by objective factors, herein it is put forward to remedy the dissatisfactions of design speed theory applied in highway design and management. Deficiency of design speed theory is pointed out first, followed by the analysis of necessity for the application of highway critical speed. The relation between highway critical speed and design speed is studied and the influence mechanisms of vehicle power performance, highway alignment element, and key design parameters on highway critical speed are also analyzed. It is concluded that highway critical speed is defined by motor vehicle dynamic characteristics and road grade and is also influenced by factors as road alignment, super elevation, and sight distance. Based on this theory, the analytical model is established and illustrated through an actual example.

## 参考文献/References:

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