市政技术2026，Vol.44Issue(9)：79-88,10.DOI:10.19922/j.1009-7767.2026.09.079
隧道洞口水幕交通语言表征及驾驶行为响应试验研究
Experimental Study on Traffic Language Characterization and Driving-behavior Response of Tunnel Portal Water Curtain
摘要
Abstract
Highway tunnel portals are critical nodes for accident prevention and control.Conventional passive early-warning measures suffer from drawbacks such as missing information,delayed response and insufficient restraint effect.As a new type of in-road active traffic language,water curtain has not yet been systematically quantitatively studied regarding its traffic-language attributes and driving-behavior response mechanism.Taking the flexible water curtain at tunnel portals as an independent research object,this paper constructs a virtual highway tunnel-entrance scenario based on UC-win/Road.Two comparative working conditions,i.e.,baseline condition without water curtain and water-curtain intervention condition,are set up.Simulated driving tests are carried out combined with eye-tracking technology.An evaluation index system is established from the dimensions of visual response and driving behavior to quantitatively analyze the warning-induction efficiency and driving safety of the water curtain.The re-sults show that the water curtain increases the maximum mutation rate of drivers' pupil diameter by 59.7％,reduces the spatial entropy of dynamic visual search by 17.1％,which can effectively arouse risk alertness and focus visual attention.The latency of braking decision is shortened by 8.3％,the ultimate longitudinal deceleration is increased by 24.4％,and the cross-section kinetic-energy reduction rate rises by 24.0％,which significantly accelerates braking response and strengthens the determination of hazard-avoidance operation.No statistically significant difference is observed in the maximum steering-wheel angle,whose values are far below the safety steering threshold for highways.This study verifies that the water curtain is an efficient and safe new emergency traffic language,which can provide theoretical support and experimental basis for traffic emergency management and control at highway tunnel portals.关键词
隧道洞口/水幕/交通语言/驾驶行为/视觉表征/应急预警Key words
tunnel portal/water curtain/traffic language/driving behavior/visual characterization/emergency early warning分类
交通工程引用本文复制引用
余代岱,王成祥,郭晓倩,姚若彬,张佳瑞,阳恩慧,邱延峻..隧道洞口水幕交通语言表征及驾驶行为响应试验研究[J].市政技术,2026,44(9):79-88,10.基金项目
四川省科技计划项目(2024NSFSC0016) （2024NSFSC0016）
