标题：Modeling the kinetic energy dissipation of road system considering actual weather conditions
作者：Huang, Lei; Guan, De-Yong; Qiang, Xin-Hong
作者机构：[Huang, Lei; Guan, De-Yong; Qiang, Xin-Hong] Shandong Univ Sci & Technol, Coll Transportat, 579 Qianwangang Rd, Qingdao 266590, Peoples R China.
通讯作者地址：[Guan, DY]Shandong Univ Sci & Technol, Coll Transportat, 579 Qianwangang Rd, Qingdao 266590, Peoples R China.
来源：MODERN PHYSICS LETTERS B
关键词：Cellular automaton; traffic flow dynamics; energy dissipation; safety; gap
摘要：Traffic flow dynamics and energy consumption differs under dissimilar weather conditions, while seldom investigations have been conducted with a cellular automata model. In this paper, the friction coefficient between ground and tire is considered as the quantitative label of weather, a dynamic safe gap based on friction coefficient to avoid rear-end crash is introduced. We developed a safer one-dimensional model to examine the kinetic energy consumption under different weathers. Numerical results show that previous models overestimated the kinetic energy consumption in medium density flow (density < 0.5). In medium flow, speed limit will not reduce energy consumption on rainy and snowy days in most cases, but is necessary for prevention of accidents. Inversely, the effect of speed control on energy consumption is obvious under extreme weather. Our work can promote a better understanding of traffic dynamics, reduce energy dissipation and be applied to real traffic management.