摘要
Abstract
To investigate the influence of tunnel sidewalls on drivers'visual characteristics and driving behavior across different lanes in a three-lane urban tunnel,a field driving experiment was conducted involving 25 drivers.Both visual and driving behavior indicators were collected.Visual indicators included gaze distribution ratios and gaze entropy values,reflecting drivers'attention allocation strategies.Driving behavior indicators,such as lateral offset and lateral acceleration,were used to evaluate drivers'lateral vehicle control ability.The results showed sig-nificant differences in attention allocation strategies and lateral control capabilities among drivers in different lanes.Compared with the middle lane,drivers in the left and right lanes allocated more attention to the sidewall on their re-spective sides.Specifically,drivers in the right lane allocated approximately 12%of their attention to the right tun-nel wall,while drivers in the left lane allocated nearly 15%to the left wall.In contrast,drivers in the middle lane on-ly allocated about 5%of their attention to either sidewall.Drivers'behavioral responses to the tunnel sidewalls also varied significantly across lanes.Vehicles in the left lane typically deviated from 0.25 to 0.34 meters to the right of the lane centerline,with lateral acceleration ranging from 0.17 to 0.21 m/s2.In the middle lane,vehicles tended to shift slightly to the left,with lateral offsets of 0.12 to 0.19 meters and lateral acceleration between 0.08 and 0.13 m/s2.Similarly,vehicles in the right lane also exhibited leftward deviation,with offsets ranging from 0.17 to 0.24 meters and lateral acceleration between 0.14 and 0.20 m/s2.Overall,the tunnel sidewalls had the greatest impact on the vi-sual search efficiency and lateral control ability of drivers in the left lane,making it the lane with the highest driving risk,followed by the right lane,while the middle lane posed the lowest risk.关键词
城市隧道/边墙效应/视觉行为/驾驶行为Key words
urban tunnel/sidewall effect/visual behavior/driving behavior分类
交通工程
