Research On The Influence Of Combined Incoming Warning Signs At Expressway Toll Station On Driving Behavior

In recent years,under the strong promotion of the Ministry of Communications,the proportion of ETC vehicles on expressways has gradually increased,which has changed drivers’lane selection behavior and habits at toll stations.Therefore,under the background that the proportion of ETC vehicles exceeds 90%,the targeted design of lane warning signs is particularly important.In this thesis,based on the principle of a few people prompt,through the design of different,collect the driver data under different combination of warning signs,research and analysis of the influence of warning signs on driver behavior,determine the best guidance plan of warning signs.Based on the driving simulation system,the guiding principle is to guide the minority vehicles.4 groups of highway main line toll station combined notice board scheme is designed.Current Status Traditional Scheme(al),with ETC vehicle guidance as the purpose.Terminal guidance scheme(a2):the notice sign at 300m is replaced by the left of ETC lane to the right of MTC lane.Advance guidance scheme(a3):change 300m,500m and 1km to MTC to the right warning sign.Voice reminder scheme(a4).On the basis of A3 scheme,add voice reminder at 2.2km away from toll station.Each driver,as an ETC user and an MTC user,drives four different scenarios.A total of 41 valid sample data(driving behavior data and eye movement behavior data)were collected.Driver reaction time,lane change behavior,deceleration behavior,control behavior,toll channel selection and other driving behaviors and psychological characteristics were analyzed.By comparing the influence of different combined arrival warning schemes on drivers’behavior and psychology,the effectiveness analysis results of different schemes are as follows:For different warning sign positions,the warning sign at 1km has the most significant influence on driving behavior,and drivers have the highest probability of lane change after looking at the 1km sign.The traditional notice scheme(al)has the problem of unclear content guidance objects at 1km and 500m,which leads to a long visual recognition time for drivers,and is prone to dangerous behaviors such as sudden braking or slow driving on high speed.When the combination schemes of signs guide MTC vehicles to the right,the lane change probability of MTC vehicles will increase significantly,but the degree and time of existence of different schemes are different.For the probability of lane change,the earlier the right guidance,the greater the probability of lane change of MTC vehicles,but the voice reminder has no significant help.For the starting time of lane change,the earlier the right guidance is,the earlier the driver changes lane,and the voice reminder is significantly helpful to the lane change position.To sum up,in the background of high proportion of ETC vehicles,sufficient front-facing lane change guidance schemes should be set to make MTC vehicles respond in advance.In large traffic volume or complex traffic environment,it is suggested to set up voice reminders to increase the probability of lane change and the operating space of lane change.The conclusion of this thesis can provide data support for the design of the arrival notice board of the expressway toll station.