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trans_sys_chap24

trans_sys_chap24 - Introduction to Transportation Systems 1...

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Introduction to Transportation Systems 1
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PART III: TRAVELER TRANSPORTATION 2
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Chapter 24: Intelligent Transportation Systems (ITS) 3
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Introduction ITS combines high technology and improvements in information systems, communication, sensors, and advanced mathematical methods with the conventional world of surface transportation infrastructure. In addition to technological and systems issues, there are a variety of institutional issues that must be carefully addressed. Substantial leadership will be required to implement ITS as an integrator of transportation, communications and intermodalism on a regional scale. 4
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The ITS-4 Technologies The ability to sense the presence and identity of vehicles or shipments in real-time on the infrastructure through roadside devices or Global Positioning Systems (GPS); The ability to communicate (i.e., transmit) large amounts of information cheaper and more reliably; The ability to process large amounts of information through advanced information technology; and The ability to use this information properly and in real-time in order to achieve better transportation network operations. We use algorithms and mathematical methods to develop strategies for network control and optimization. 5
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The Vision for ITS in the U.S. A national system that operates consistently and efficiently across the U.S. to promote the safe, orderly and expeditious movement of people and freight. Here, recognition of the need to think intermodally and about the needs for both personal and freight mobility was explicit. An efficient public transportation system that interacts smoothly with improved highway operations. The concept that ITS had to do more than simply improve single occupancy vehicle level-of-service on highways is captured here. A vigorous U.S. ITS industry supplying both domestic and international needs. 6
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Technology, Systems and Institutions T ECHNOLOGY S YSTEMS I NSTITUTIONS 7
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-- Technology, Systems and Institutions T RANSPORTATION F UNDAMENTALS A RAMEWORK A NALYSIS T ECHNOLOGY S YSTEMS I NSTITUTIONS F FOR 8
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Advanced Transportation Management Systems (ATMS) ATMS will integrate management of various roadway functions. It will predict traffic congestion and provide alternative routing instructions to vehicles over regional areas to improve the efficiency of the highway network
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