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http://dx.doi.org/10.7470/jkst.2015.33.4.405

Study on the Drivers' Response Characteristics Using Spectral Analysis of Car Following Data  

CHAE, Chandle (Dept. of Road Transport, The Korea Transport Institute)
OH, Sei-Chang (Department of Transportation Systems Engineering, Ajou University)
KIM, Youngho (Department of Transport Safety and Highway, The Korea Transport Institute)
LEE, Jun (Department of Transport Safety and Highway, The Korea Transport Institute)
Publication Information
Journal of Korean Society of Transportation / v.33, no.4, 2015 , pp. 405-416 More about this Journal
Abstract
This paper developed a method analyze drivers' response characteristics using spectral analysis with car following data. Cross-correlation function and cross spectrum are produced by Fourier transform from speed fluctuations of leading vehicle and following vehicle during the designated time ${\tau}$. Based on the analysis data, a process to calculate the reaction time and stimulus-adaption index of following vehicle was developed and 170 cases of field data was applied. It was reported average of 0.654 and 2.091 seconds of stimulus-adaption index and reaction time respectively. In conclusion, the developed indexes might contribute to enhance vehicle control of autonomous vehicle more efficient and safer.
Keywords
car following; driving behavior; fourier transform; spectral analysis; wave;
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