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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Microscopic traffic flow model ： ウィキペディア英語版 Microscopic traffic flow model Microscopic traffic flow models are a class of scientific models of vehicular traffic dynamics. In contrast to macroscopic models, microscopic traffic flow models simulate single vehicle-driver units, so the dynamic variables of the models represent microscopic properties like the position and velocity of single vehicles. ==Car-following models== Also known as ''time-continuous models'', all car-following models have in common that they are defined by ordinary differential equations describing the complete dynamics of the vehicles' positions $x\_\backslash alpha$ and velocities $v\_\backslash alpha$. It is assumed that the input stimuli of the drivers are restricted to their own velocity $v\_\backslash alpha$, the net distance (bumper-to-bumper distance) $s\_\backslash alpha\; =\; x\_\; -\; x\_\backslash alpha\; -\; l\_$ to the leading vehicle $\backslash alpha-1$ (where $l\_$ denotes the vehicle length), and the velocity $v\_$ of the leading vehicle. The equation of motion of each vehicle is characterized by an acceleration function that depends on those input stimuli: :$\backslash ddot\_\backslash alpha(t)\; =\; \backslash dot\_\backslash alpha(t)\; =\; F(v\_\backslash alpha(t),\; s\_\backslash alpha(t),\; v\_(t))$ In general, the driving behavior of a single driver-vehicle unit $\backslash alpha$ might not merely depend on the immediate leader $\backslash alpha-1$ but on the $n\_a$ vehicles in front. The equation of motion in this more generalized form reads: :$\backslash dot\_\backslash alpha(t)\; =\; f(x\_\backslash alpha(t),\; v\_\backslash alpha(t),\; x\_(t),\; v\_(t),\; \backslash ldots,\; x\_(t),\; v\_(t))$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Microscopic traffic flow model」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.