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| Optimization of Deceleration Markings of Visual Illusion in a Highway Tunnel |
| SHI Xiao-hua1, DU Zhi-gang2, ZHOU Li-ping1, LI Ping-fan3 |
1. Wuxi Mingda Traffic & Technology Consulted CO., Ltd., Wuxi Jiangsu 214023, China;
2. School of Transportation, Wuhan University of Technology, Wuhan Hubei 430063, China;
3. Traffic Management Research Institute of Ministry of Public Security, Wuxi Jiangsu 214151, China |
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Abstract In order to improve the deceleration effect in the highway tunnel, the design method of visual information with high and low frequency combined is proposed. Through using 3ds Max software design driving video, and set up illusion combination marking in high frequency (8-16 Hz) and low frequency (0.2-4 Hz) in the tunnel side wall, this paper completed the psychophysical experiments of speed perception about a single frequency and a series of combination of high and low frequency of visual information by E-prime2.0 software, the degree of speed illusion is different under different information, so visual illusion is analyzed on the lines of deceleration effect. Conclusion:Multi frequency combined information makes speed perception overestimate of drivers, and the driver's speed overestimation degree is 8.21% when High frequency and low frequency information are 12 Hz and 0.2 Hz respectively, which is in the reasonable scope, at the same time the driver's shortest reaction time is 2.08 s. On this basis, by the safety distance model, in the highway tunnel the speed calculated is at least 67 m so that it can keep a safe distance, it decreases 25.6% compared with the traditional safety distance 90 m, it conforms to the actual driving conditions and provide the certain reference of the safety specification for driving inside the tunnel.
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Received: 19 June 2016
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| Fund:Supported by the National Natural Science Foundation of China (No.51578433) |
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Corresponding Authors:
SHI Xiao-hua,E-mail:1023961874@qq.com
E-mail: 1023961874@qq.com
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2016, Vol. 10 
