交通影响评价中交叉口服务水平综合评价研究

在对已有交通影响评价(TIA)中城市道路交叉口服务水平评价的不足之处进行分析和研究的基础上,提出了建立交叉口综合服务水平的评价指标体系和评价标准的方法,并采取多指标的综合评价方法对交叉口的服务水平进行评价,在确定各指标权重上采取AHP的方法,最终以综合评价的方式对交叉口的服务水平进行评价与分析。在案例分析中应用交通仿真软件Vissim对具体交叉口进行建模与交通仿真,并对仿真结果进行输出与评价,将评价的结果与建立的评价指标进行比较,最终确定交叉口综合服务水平,评价的结果与现场调查的实际情况较为吻合,对TIA工作的开展有一定的帮助。

Comprehensive Evaluation of Intersection Service Level in the TIA

Based on the analysis of the inadequate of existing evaluation of intersection service level and research methods,this paper established the intersection service level evaluation index system and evaluation criteria,and adopted a multi-index comprehensive evaluation method to evaluate intersection service level,with determining the weight of each index by the AHP method.Using the Vissim for specific cases simulation,it evaluated the results of simulation,and compared the results with the standards which had been established.Ultimately comprehensive service level of the intersection was determined.The result was more consistent with the actual situation and helpful to the TIA work.