基于UML的BRT交叉口信号优先控制分析

BRT（Rapid Bus Transit）是一种介于轻轨和巴士之间的灵活的公共交通方式，是城市公共交通系统中的一种有效补充形式。BRT的运营方式有多种，对于其中的地面型BRT来说，交叉口信号优先控制是其运营的关键环节，是其接近轨道交通运营服务水平的保证。本文借鉴了交叉口信号优化控制的理论和方法．以及轨道交通中的一些理念。考察了BRT通过交叉口这一实际过程，分析了BRT交叉口信号优先控制系统的相关策略，控制流程和控制方法，并采用UML（Unified Modeling Language）统一建模语言，运用面向对象方法（OOA）对系统进行了进一步的建模和设计，使用VP—UML工具建立了系统的初步可视化模型。

Analysis of Intersection Signal Optimization Control for BRT Based on UML

BRT is a flexible form of public transportation system, whose service level is between light rail and bus. It is a effective addition to the public transportation system. BRT has many forms, one of them, the BRT buses which run on the ground, whose service level is based on signal optimization control at intersections. This paper explores the process that BRT passes the Intersection, and use the theory and methods which are used in intersection signal optimization control to analyze the intersection signal optimization control system for BRT. And then the system is modeled with OOA, a visible model based on UML is built by VP-UML tool.