【摘要】 为了简化区域公路交通预测工作,结合我国目前公路交通特征,设计并建立基于OD更新的区域公路交通预测系统非常必要。从结构和功能出发,提出系统需具备数据管理、图形管理、OD更新、需求预测和交通量预测等5个基本模块。重点分析了系统实现过程中的一些关键技术,如数据关联和融合、图形数据接口、路网检查方法、控制点选择方法、相关路段筛选等。系统的开发和应用能提高区域公路交通信息化水平,帮助制定科学合理的规划设计和管理策略。更多还原

【Abstract】 In order to reduce the workload,it is necessary to design and establish regional highway traffic demand forecasting system based on the characteristics of highway in our country.This paper proposes that from structure and function perspective,the system must contain five modules including database module,graph & GIS module,OD matrix updating module,transport demand estimation module and traffic analysis module.Some key technologies involved in this system,such as process of data association and fusion,technology of graphics data interface,inspection method of highway network,selection of the control points,screening approach for relevant sections,are expatiated in detail.The implementation and application of this system would promote the informatization level of regional highway traffic technology,and help to make more high-efficiency and high-quality planning,design and management strategies.更多还原