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原文传递 THE NATIONAL ITS ARCHITECTURE: A FRAMEWORK FOR ITS INFRASTRUCTURE.

题名：	THE NATIONAL ITS ARCHITECTURE: A FRAMEWORK FOR ITS INFRASTRUCTURE.
作者：	Simmons-L
关键词：	INTELLIGENT-TRANSPORTATION-SYSTEMS; SYSTEMS-ARCHITECTURES; INTERMODAL-SYSTEMS; TRANSPORTATION-PLANNING; TRAFFIC-MANAGEMENT; COMMERCIAL-VEHICLES; TRANSIT-MANAGEMENT; EMERGENCY-SERVICES; SYSTEMS-ENGINEERING; SYSTEM-PLANNING; INFRASTRUCTURE-; COMMUNICATION-SYSTEMS; PUBLIC-PRIVATE-PARTNERSHIPS
摘要：	Completed in June 1996, the National Intelligent Transportation Systems (ITS) Architecture shows how individual ITS services can be linked together to create intermodal and interoperable systems that better serve travelers and system managers in all areas. The ITS architecture consists of a logical architecture and a physical architecture. The logical architecture defines eight major processes and associated information flows: managing traffic, managing commercial vehicles, providing vehicle monitoring and control, managing transit, managing emergency services, providing driver and traveler services, providing electronic payment services, and planning system deployment and implementation. The physical architecture allocates the processes of the logical architecture to 19 major physical subsystems that are organized into four basic physical classes: transportation management centers, roadside equipment, vehicles, and travelers. The physical architecture addresses three major layers of infrastructure. The transportation layer deals with the transportation infrastructure and operations of ITS, the communications layer identifies how existing and developing commericial or dedicated communication systems and open protocols can support ITS services, and the institutional layer outlines possible roles and relationships among public and private institutions.
总页数：	Public Roads. 1997/09. 61(2) pp15-17 (1 Phot.)
报告类型：	科技报告