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1、 Research Report AP-R668-22 Use of Perceptual Countermeasure Treatments to Reduce Crash Risks in Tunnels Use of Perceptual Countermeasure Treatments to Reduce Crash Risks in Tunnels Prepared by Prasannah Prabhakharan,Julius R.Secadiningrat,Michael A.Regan,Joanne Bennett,Mitchell Cunningham,Aleksa Zl

2、ojutro,Vinayak Dixit Publisher Austroads Ltd.Level 9,570 George Street Sydney NSW 2000 Australia Phone:+61 2 8265 3300 .au .au Project Manager Geoff McKernan Abstract This report evaluates selected low-cost perceptual countermeasure(PCM)treatments in tunnel environments.PCM treatments are used to re

3、duce crash risk by improving driver speed behaviour,alertness and lane discipline within tunnels.Two key research activities were undertaken in the project:a systematic literature review and stakeholder consultation an experimental study conducted in a virtual reality driving simulator.Based on the

4、outputs of the literature review and stakeholder consultations,three PCM treatments were selected for evaluation in the virtual reality driving simulator:striped wall pattern;rumble strips(edgeline and centreline);and pacemaker lighting.In the simulated tunnel environment,the three PCM treatments ev

5、aluated had little or no positive effect in either maintaining drivers speed or lane position.Nevertheless,in subjective feedback from study,participants indicated that none of the PCMs compromised their safety,and that the tunnels treated with PCMs were perceived to be significantly more appealing

6、than untreated tunnels.Further research is needed to determine the impact of the virtual environment on the study outcomes.About Austroads Austroads is the peak organisation of Australasian road transport and traffic agencies.Austroads purpose is to support its member organisations to deliver an imp