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  • Title: Impact of perceptual countermeasures on driving behavior at curves using driving simulator.
    Author: Awan HH, Pirdavani A, Houben A, Westhof S, Adnan M, Brijs T.
    Journal: Traffic Inj Prev; 2019; 20(1):93-99. PubMed ID: 30822137.
    Abstract:
    OBJECTIVE: The probability of crash occurrence on horizontal curves is 1.5 to 4 times higher than that on tangent sections. A majority of these crashes are associated with human errors. Therefore, human behavior in curves needs to be corrected. METHODOLOGY: In this study, 2 different road marking treatments, optical circles and herringbone patterns, were used to influence driver behavior while entering a curve on a 2-lane rural road section. A driving simulator was used to perform the experiment. The simulated road sections are replicas of 2 real road sections in Flanders. RESULTS: Both treatments were found to reduce speed before entering the curve. However, speed reduction was more gradual when optical circles were used. A herringbone pattern had more influence on lateral position than optical circles by forcing drivers to maintain a safe distance from opposing traffic in the adjacent lane. CONCLUSION: The study concluded that among other low-cost speed reduction methods, optical circles are effective tools to reduce speed and increase drivers' attention. Moreover, a herringbone pattern can be used to reduce crashes on curves, mainly for head-on crashes where the main problem is inappropriate lateral position.
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