摘要
为了研究高速公路运行车速的分布特征,进而构建基于连续线形变化的运行车速预测模型,利用对射式激光测速仪进行了高速公路断面车速的调研.对采集到的断面车速按照不同的车型、路段等进行数据分析,研究了不同线形组合下实测车速的变化特征,并与IHSDM和《公路项目安全性评价指南》的预测结果进行了比较,然后运用SPSS软件进行了断面运行车速分布形式和分布特征的研究,通过进行四类分布检验,最后确定高速公路断面运行车速呈正态分布.
To study the characteristics of highway operation speed distribution and construct operation speed prediction model based on continuous alignment change, the research group conducts a highway cross-section operation speed survey by using laser emit-receive mode vehicle speed detector. Surveyed speed of different vehicle types and road sections is studied to observe its characteristics in different aliment combination, and is compared with the prediction by IHSDM and the Guidelines for Safety Audit of Highway. Then, SPSS is used to statistically analyze the cross-section operation speed distribution and its characteristics, and finds that normal distribution is the most fitted among selected four distribution tests.
出处
《华东交通大学学报》
2008年第5期32-35,共4页
Journal of East China Jiaotong University
基金
辽宁省交通厅科技项目(062089)
