公路交通事故黑点分析系统的设计

在公路交通事故黑点分析系统需求分析的基础上,设计了公路交通事故黑点分析系统的总体结构、数据库和算法库,提出系统流程及各个模块的功能。数据库设计给出事故黑点分析系统的E-R图与逻辑结构;算法库设计重点实现对应分析法,提出运用对应分析法进行事故黑点成因分析的原理和步骤;应用面向对象的系统开发技术研发应用软件,通过事故黑点信息查询窗口、事故黑点判定窗口和事故黑点成因分析结果图的实现,论证了应用软件进行公路事故黑点成因分析的可行性和实用性。

Design on Cause Analysis System for Road Black Spots

Based on the requirement analysis of road black spots analysis system, the architecture, database and arithmetic base of road black spots analysis system are designed, the correlative data flow chart and module function are provided. The E-R chart and logical structure of road black spots analysis system are supplied in the design of database; corresponding analysis methods are achieved in the design of arithmetic base. The principles and steps of cause-analysis methods for road black spots are supplied. Applied software is developed by use of object-oriented technology ; this software is proved to be feasible and practical through the function demonstration of information inquiry windows for black spots, judging windows for black spots and cause-analysis result diagram for black spots.