文章编号：1672-5328（2007）02-0071-10

易汉文
（美国加州交通部，加利福尼亚，92110）

摘要：对三个用地开发项目交通影响分析的实际案例分别从不同的侧面进行了解析。案例A是对居住零售用地项目的交通影响分析，比较系统地演示了开展项目交通影响分析的主要步骤，包括分析方案的确定，现状交通条件、项目新增出行量及其交通影响的分析，以及交通影响消减措施的拟定和责任分担的计算。案例B针对在城市中心商业广场计划新建的一个超级市场项目，主要介绍了基于交通观测的相关系数模型法在项目出行分布预测中的应用过程。案例C则重点阐述了运用交通规划模型来分析大型区域性商业开发区的交通影响。最后对几个基本技术问题进行了讨论。

关键词：用地项目；道路/交叉口；出行预测；交通影响分析；案例

中图分类号：U491

文献标识码：A

Exemplary Studies for Site Impact Traffic Evaluation

YI Hanwen
(California Department of Transportation, California 92110, U.S.A.)

Abstract: From different angles, this paper presents three analytical examples of traffic impact evaluations for site development projects. Example A, a traffic impact study of a residential plus retail development, demonstrates in a systematic manner the basic steps for conducting site traffic impact studies, including setting up scenarios, analyzing existing traffic conditions, predicting site-generated trips and their impacts, and developing mitigation measures as well as allocating responsibilities. Example B, a supermarket development project proposed within a metropolitan shopping plaza, focuses on introducing the procedures of applying a traffic-count based correlation-coefficient method to site-generated trip distributions. And, Example C is a brief illustration of using transportation planning models to evaluate traffic impacts of a large-sized regional commercial zone that will be developed in the future. The paper concludes with remarks in regards of several technical issues that are fundamental to traffic impact studies.

Keywords: land-use projects; streets/intersections; travel forecasting; traffic impact studies; examples