重大公路交通基础设施运行环境描述模型

Operational Environment Description Model of Highway Pivotal Infrastructure

摘要:

从道路环境、交通环境与气候环境三方面综合分析重大公路交通基础设施运行环境风险性，根据客观环境条件对道路用户行为的影响建立运行环境描述模型，对重大公路交通基础设施路段特征和运行环境属性特征进行描述.筛选影响重大公路交通基础设施运行环境安全性的显著性因素，提出线形安全性、路面状况安全性、交通设施认知性、安全设施有效性和气候环境风险性五类运行环境风险指标，给出相应评估内容与评估建议值，并描述了运行环境综合指标随单项指标的变化规律.

Abstract:

An analysis was made of the operation environment in terms of the road facilities,traffic environment and climatic environment to ensure pivotal infrastructure security. According to the relationship between driving behavior and operation environment,a description model was established to describe the characteristic of road division and operation environment attributes. Based on an analysis of the significant influence factors,five characteristic indexes including alignment safety,pavement performance safety,cognitive character of traffic sign,validity of traffic safety facilities ,risk of climatic environment and related assessment contents were proposed. At last,rules of comprehensive index changing with the risk index were proposed for an analysis of the operation environment safety.