基于多源数据的步行者交通安全环境研究——以L市老城核心片区生活性街道为例

Pedestrian Traffic Safety Environment Research Based on Multi-source Data:A Case Study of Living Streets in the City Core Area

本文以L市老城核心片区生活性街道为例,运用统计资料、现场勘测和开源数据集成等方法获取研究数据,提出实验假设并进行论证,旨在探求环境要素对步行者交通安全的影响与具体值域分布特征,为街道优化策略提供相应依据。研究发现,路段长度和出入口密度等形态要素,使用者空间权配和界面变化等空间要素,以及街道功能多样性等功能要素均为生活性街道步行者交通安全风险的重要影响因素。设计策略应注重对车速的控制和对不同类型要素的综合考虑,并尝试提出相应的指标建议,以实现对生活性街道步行安全环境的有效测评。

Taking the living streets in the city core area as an example,this paper uses of statistical materials,field survey and multi-source data and other means to obtain the research data,proposes assumptions and demonstrated them,aiming to explore the influences of environmental factors on pedestrian traffic safety on links,and to provide the references for street optimization strategies.This article shows that the street form factors such as road length and entrance density,the space factors such as street-users space allocation and architectural interface change,and the function factor such as street functional diversity are the important factors that affect the traffic safety of pedestrians on living streets.The design strategies focus on the speed control and the comprehensive consideration of different types of factors,meanwhile,this paper also tries to put forward corresponding indicators to achieve the effective evaluation of the traffic safety environment for living streets.