| With the development of transport, road-building process significantly faster,maturing network scale, density continues to increase. But limited by terrain, there aredifferent sections of the lateral width change, the driver can "obtrusive", from Visualdisturbance, resulting in the occurrence of traffic accidents, the accident-prone roadsections. Due to changes in its accident-prone and the related impact on drivers ’ Visual,pilots rely primarily on Visual system to obtain various traffic information.Therefore, change sections of the pilot’s visual characteristics and lateral visiontechnologies to improve road safety and security operations security plays a veryimportant role.In order to improve road safety, protect the visual comfort of driver’s Lane, thisarticle from the lateral width changes impact on drivers ’ Visual analysis usingmathematical analysis, from the driver’s vision and operating speed of two light lateralwidth of tunnel entrance section of reasonable length-recommended value of transition.First in the standard provisions relating to analysis and research results, defined thecontent and technical route of this study. Came of main results has:①in driver drivingacts and visual characteristics theory analysis of based Shang, combines driver eyemoving of basic forms and the evaluation method, determines and design has tunnelsections driver eye moving real car test;②uses Smart Eye Pro5.7type non-invadedtype eye moving instrument records has driver in distance tunnel hole different sectionDepartment driving process in the driver of eye moving parameter, and to all sectionsShang driver of Visual continued time, and watch time percentage, and average watchtime, and pupil diameter, and Note perspective, and watch points location distribution asevaluation indicators, analysis has all sections driver of eye moving law, while recordshas throughout process in the vehicles run speed of changes;③through on differentsections driver eye moving data of analysis, established has tunnel out entrance side towidth changes on driver Visual of effects range;④to better to evaluation side to widthchanges on driver Visual of effects, made to driver eye moving speed changes rate asdriver Visual suitable sexual of evaluation indicators, Obtained through a statisticalanalysis of drivers ’ visual reference standards for suitability evaluation;⑤throughanalysis of operation speed, summary of changes, from the external dimensions to betterreflect the tunnel entrance and exit effects of change on driver’s side. Finally, based on the analysis of tunnel section of the driver’s eye movement rule,separately proposed based on speed and the driver’s vision of lateral change of transitionsection of tunnel entrance length recommended values. |
