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首页> 外文期刊>Transportation Research Part B: Methodological >Symmetries in the kinematic wave model and a parameter-free representation of traffic flow
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Symmetries in the kinematic wave model and a parameter-free representation of traffic flow

机译:运动波模型中的对称性和交通流的无参数表示

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This paper identifies a family of linear transformations where conservation laws are invariant. In the case of a triangular fundamental diagram, it is shown that for a subset of these transformations, flow, total distance traveled and total delay are invariant. This means that for capacity or delay computations one may choose the transformation-i.e., the shape of the triangular diagram that simplifies the problem the most, which does not require knowing the actual fundamental diagram. This is appealing also for delay-optimizing control problems since they may be solved using an isosceles fundamental diagram, which provides the most efficient numerical methods. Examples are given. (C) 2016 Elsevier Ltd. All rights reserved.
机译:本文确定了一个线性变换族,其中守恒定律是不变的。在三角形基础图的情况下,表明对于这些变换的子集,流量,总行进距离和总延迟是不变的。这意味着对于容量或延迟计算,可以选择变换,即,最简化问题的三角图的形状,而无需知道实际的基本图。这对于延迟优化控制问题也很有吸引力,因为可以使用等腰基本图来解决这些问题,它提供了最有效的数值方法。举例说明。 (C)2016 Elsevier Ltd.保留所有权利。

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