高速公路同向分离路段交通指引标志选择影响因素分析

Analysis of influencing factors for the selection of traffic guidance signs in the same-direction separation sections of expressways

摘要:

在高速公路改扩建工程中，同向分离路段因其特殊的路基设计，容易导致驾驶员在行驶过程中产生路径选择犹豫，进而引发急刹车、突然变换车道等行为，增加发生交通事故的风险。因此，合理的交通指引标志类型的设置对于提升行车安全具有重要的意义。为此，以广韶高速公路旦架哨隧道和升平立交同向分离点前的交通指引标志类型为研究对象，通过问卷调查，收集驾驶员对交通指引标志类型的选择数据，结合多项Logit模型，分析影响驾驶员选择交通指引标志类型的显著因素。研究表明，不同驾驶员的性别、年龄、职业等个人属性，会对不同交通指引标志类型的选择产生显著正向或负向的影响；同时，个人属性的变化会影响其对交通指引标志类型的选择概率。通过对建立的多项Logit模型的结果分析，为优化高速公路同向分离路段交通指引标志类型的选择提供了依据，有助于提高道路的交通安全和通行效率。

Abstract:

In the process of expressway reconstruction and expansion, the same-direction separation sections, due to their unique subgrade design, tend to cause drivers to hesitate in choosing their paths during driving, which may lead to sudden braking and sudden lane changes, increasing the risk of traffic accidents. Therefore, the reasonable setting of traffic guidance sign types is of great significance for improving driving safety. For this purpose, the traffic guidance sign types before the same-direction separation points of Danjiaoshao Tunnel and Shengping Interchange on Guangzhou-Shaoguan Expressway were taken as the research objects. Through questionnaire surveys, the data on drivers' choices of traffic guidance sign types were collected, and the significant factors influencing drivers' choices of traffic guidance sign types were analyzed using the multinomial Logit model. The research shows that different personal attributes of drivers, such as gender, age, and occupation, have significant positive or negative impacts on the choice of different traffic guidance sign types, and the changes in personal attributes also affect the probability of choosing traffic guidance sign types. Through the analysis of the results of the established multinomial Logit model, it provides a basis for optimizing the selection of traffic guidance sign types in the same-direction separation sections of expressways, which is conducive to improving road traffic safety and efficiency.