Experimental Study on the Impact of Reboundable Traffic Cylinders at Highway Tunnel Entrances on Traffic Safety
To explore the effectiveness of reboundable traffic cylinders in improving traffic safety at highway tunnel entrances,four scenarios were constructed using fluorescent reboundable traffic cylinders with heights of 100 cm,90 cm,and 75 cm,as well as without reboundable traffic cylinders.Experiments were conducted using a driving simula-tion platform to collect driving data.Based on the human characteristics of drivers at highway tunnel entrances,the impact of different scenarios with/without reboundable traffic cylinders and different reboundable traffic cylinder schemes on lane keeping and speed control of drivers was analyzed.The study shows that fluorescent reboundable traffic cylinders can result in smaller and more stable lateral deviations of vehicle trajectory.Compared to the sce-nario without reboundable traffic cylinders,driver's lane-keeping ability can be improved by 44.93%,36.38%,and 14.62%under the 100 cm,90 cm,and 75 cm reboundable traffic cylinders schemes,respectively.Using the re-boundable traffic cylinders can effectively control vehicle speed,warning drivers to decelerate in advance in the ap-proach section.The vehicle speeds can be maintained near 85%of the maximum limit and were stable.Compared to the scenario without reboundable traffic cylinders,the speed control ability improved by 38.38%,30.40%,and 13.36%under the 100 cm,90 cm,and 75 cm reboundable traffic cylinder schemes,respectively.The reboundable traffic cylinders can enhance the continuity,consistency,and symmetry of the sight guidance in the tunnel entrance area,with the height of the reboundable traffic cylinders being positively correlated with the improvement effect.The 90 cm and 100 cm reboundable traffic cylinders can significantly improve traffic safety.
Tunnel entranceDriving simulationReboundable traffic cylinders with fluorescent membraneHuman characteristicsTraffic safety
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