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第一章定义什么是左转交通事故左转交通事故的一些背景
第二章为什么左转交通事故发生率比较高，为什么左转交通事故在全世界是一个大的难题
第三章分析不同国家左转交通事故的严重性，此章需要有大量的数据作为支持
第四章根据阅读的文献，总结之前的研究者在此领域所做的研究，所对此问题的分析
第五章从车辆的角度，行人的角度分析此问题的之前的和现在的解决方案，同时分析如何应用智能交通的理论解决此问题
第六章根据前面的研究，给出本人对此问题的理解以及解决方案，从而建立一个新的模型区解决此问题
中间可以生成一个CHECK LIST 根据交通安全审计的理论（此部分如果不明白我自己可以写）

Abstract
The aim of this research is to determine the effects and analysis the 英语论文提纲left turning accident rate in urban road between different intersections.
Previous studies found that there are particular parameters that had positive and negative effect to the accident rate.
Different accident rate analysis models discussed during researches.
The main methodology is according to the literature study about different left turning accident models summarize the various parameters. And then collection data from real situation in xxxxx urban road intersections to analysis it by SafeNET to determine which parameters for accident rate is positive and which one is negative. End up with parameters changing to define my own left turning accident rate analysis model.
The expectation of my own model is to use it to calculate the left turning accident rate for different kinds of intersections in different area (hopefully at the end I can achieve this purpose).

table of contents
Abstract 2
1 Introduction 4
1.1 Introductions and background 4
1.2 Purpose 4
1.3 Methodology 4
1.4 Outline 5
2 literature review 6
2.1 Principles of left turning lane design 6
3 Data Collection & Modification for Chosen Scenario Sites 7
4 Implementation of SafeNET 7
5 Validation and Calibration Result 7
6 Conclusion and Possibilities of Future researches 7

1 Introduction
1.1 Introductions and background
The important of road safety 厖..
Background of left turning lane
And the general idea of left-turning guideline, which is the general useful method to determine the left turning lanes to achieve safety and effective purpose.
Left turning traffic situation for signalized and unsignalized intersections.
Left turning accidents between vehicles to vehicles in signalized intersection
Left turning accidents between vehicles to pedestrians in unsignalized intersection
Background of SafeNET what it can do and what we are going to do it with this research
An accident rate analysis tool which is can be used to determine which specific parameters and data affect the accidents rate by numeric level.
During our research we just focus on the left turning accident rate analysis try to base on real data to summarize a general model for vehicle to vehicle left turning accidents rate model by parameters changing in SafeNET anasysis.
1.2 Purpose
The main purpose of this research is to determine the main effects parameters of left turning accident rates and analysis it in urban road between signalized and unsignalized urban intersections. Analysis the characteristics for vehicle to pedestrians accidents model which include human factors and geographic factors. Then come up with a general model specific for vehicle to vehicle accident rate.
1.3 Methodology
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