Memoirs of the Faculty of Engineering, Yamaguchi University

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Memoirs of the Faculty of Engineering, Yamaguchi University Volume 29 Issue 1
published_at 1978

Studies on the relationships of traffic density, speed and volume

道路交通流における密度・速度・交通量相関について
Tamura Yoichi
Mogami Sachio
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Descriptions
In this report, the autors applied the N-th power traffic flow model, U=U_f〔1-(K/K_j)^N〕 to the traffic flow data. The parameter in the model was estimated by the mean free speed, U^* and mean free density, K^*. U^* and K^* were estimated by the critical time headway, t_c and we adopt 4.5sec. and 9.0sec. as t_c. The traffic flow data were gathered according to three difference time intervals 1min., 3min. and 5min. The three traffic flow data showed similar tendency.
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