The Netcell Simulation Package: Technical Description
The Netcell Simulation Package: Technical Description
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发表时间：
1997-05
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通讯作者：
R. Cayford;Wei-Hua Lin;C. Daganzo
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作者：
R. Cayford;Wei-Hua Lin;C. Daganzo
本报告描述了 NETCELL 仿真包。 NETCELL 是一个基于单元传输模型的高速公路网络仿真程序，它以与高速公路交通流体动力学理论一致的方式捕获具有三足路口的高速公路网络上多种商品交通的动态演化。 NETVIEW 是一个用于查看 NETCELL 输出文件的图形后处理器。本文档详细讨论了程序的实现，包括具有三腿路口的高速公路网络的单元表示、数据和文件结构、输入和输出，以及为模拟路口交通进展而开发的一些关键算法。还估计了程序的内存和计算时间要求。其中包括具有单个起点、两个目的地和单个分叉路口的小型网络的示例。该报告还包括 NETVIEW 程序的用户指南。 NETCELL 程序基于 1994 年编写的原型程序。该版本包含对模型的一些增强和内存处理改进，使 NETCELL 能够对非常大的网络进行建模。此版本的 NETCELL 程序应该可用作研究和工程工具。关键词：交通仿真，交通流模型，交通网络，交通拥堵管理，动态交通分配。
This report describes the NETCELL simulation package. NETCELL is a freeway network simulation program based on the cell transmission model which captures the dynamic evolution of multicommodity traffic over a freeway network with three-legged junctions in a way that is consistent with the hydrodynamic theory of highway traffic. NETVIEW is a graphical postprocessor for viewing NETCELL output files. This document discusses implementation of the programs in detail, including the cell representation for a freeway network with three-legged junctions, data and file structures, inputs and outputs, and some key algorithms developed to model traffic progression in junctions. The memory and computational time requirements for the program are also estimated. An example for a small network with a single origin, two destinations, and a single diverge junction is included. This report also includes a user's guide to the NETVIEW program. The NETCELL program is based on a prototype program written in 1994. This version incorporates some enhancements to the model and memory handling improvements to allow NETCELL to model very large networks. This version of the NETCELL program should be useful for use as a research and engineering tool. Keywords: traffic simulation, traffic flow model, transportation network, traffic congestion management, dynamic traffic assignment.