摘要
我国对于快速路交织区的分析一直沿用国外的公式和服务水平分级标准,然而,除了城市快速路的设计标准不同于高速公路外,车辆的运行特性、交通组成、驾驶员的总体特征也不同于国外,因此运行分析结果是否符合中国的实际情况、在多大程度上符合都有待于研究,用快速路实测数据重新标定的公式,是最有效、最科学的方法,本文利用北京、上海和广州的实测数据,重新标定了美国HCM2000交织区的运行速度公式。通过验证和算例分析认为,标定过的公式能客观地反映我国快速路的实际情况,有很好的应用价值。另外,通过全国几个大城市的走访调研,根据设施构造的不同对我国的快速路交织区进行了分类。
China has been using the American formula and LOS to analyze the weaving sections of urban expressway all the time, but except that the urban expressway standard is different from American freeway, the operation characteristics, drivers＇ characteristics and so on are also different from those of foreign countries, so the analyzed result whether or not accords with actual conditions is still a question. The most effective, scientific method is to use the field data of China to calibrate the existing formula, so the field data gathered from the weaving sections of the expressway in Beijing, Shanghai and Guangzhou to calibrate the operation speed formula of weaving sections of HCM2000, U. S.A. Through validation and using calibrated formula to do example analysis, it proves that the result from calibrated formula can reflect actual operation conditions of the weaving sections objectively, thus it has good value for application. In addition, through surveying and studying the situation and conditions of weaving sections in existing expressway system in China, weaving sections are divided into 3 types of configuration, that is type Ⅰ ,Ⅱ and Ⅲ.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2006年第10期907-912,共6页
Journal of Beijing University of Technology
基金
国家'十五'科技攻关项目(2002BA404A02)北京市自然科学基金资助项目(KD0402200389).
关键词
快速路
交织区
运行分析
速度
数学模型
标定
expressway
weaving sections
operation analysis
speed
mathematical models
calibration
