Based On Eye Movement Characteristics Of The Highway Continuous Long Slope Section Linear Research

In recent years,China’s expressways have been greatly developed,with the rapid growth of mileage,but at the same time,highway traffic accidents occur frequently.Because of the complex topography,there are some long slope sections in mountainous expressway.There are some hidden dangers in this part of the long slope road section,which is often the main road section with frequent accidents.The main reason is that the terrain height difference is relatively large,the slope section is long,and there are many curves,which makes it difficult for drivers to operate.Based on the characteristics of driver’s eye movement,this paper studies the alignment of Expressway continuous long slope section,and its topic selection has important theoretical research value and practical guiding significance.Vision is the most important way for drivers to obtain road information,but the standard only regulates the sight distance,which is one-sided and insufficient.In this paper,the visual needs of drivers are determined as the research indicators,and the dynamic visual awareness required by drivers under normal driving conditions and the relevant gaze scanning theory are expounded.The paper has carried on the real vehicle test design.Combined with the final test purpose,the characteristics and attributes of the test road section are defined.On this basis,scientific and reasonable test instruments and application equipment are selected,and drivers of different occupations,driving ages and ages are selected to carry out relevant theoretical research and real vehicle tests,to complete the sorting and screening of important parameters and test data.After preprocessing the initial data,the software and method of data processing are determined based on the analysis of the results.To determine the horizontal curve radius as a linear index,this paper studies and analyzes the relationship between eye movement characteristics and diversified horizontal alignment,finds the specific rules to follow,and establishes a regression model.At the same time,the relationship between slope and eye movement is studied by selecting slope as the linear index of vertical section.The parameters of horizontal and vertical alignment and the characteristics of driver’s eye movement are analyzed comprehensively,and the model is established.The research results can provide a reference for the design of Expressway continuous long slope and the revision of specifications.