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Edition:Final Report, August 2018 – May2021
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Abstract:Connected and Autonomous Vehicle (CAV) technology is advancing rapidly in the United States and abroad. The technology allows two or more vehicles equipped with state-of-the-art driving support systems to travel closely, one following the other, forming a platoon with the vehicles driven by Intelligent Transportation Systems (ITS) technology, and mutually communicating along a certain distance. Platooning is applicable to all types of motor vehicles, including cars, buses, and trucks. Any of the Federal Highway Administration (FHWA) vehicle classes can potentially become a part of a “platoon.” Potential benefits of CAV technology applied to truck platooning include cleaner operation, improved safety, and greater efficiency. Because of its potential benefits, several states and FHWA performed truck platoon demonstrations that confirmed the validity and benefit of the technology. Available literature mostly discusses the software and hardware used in the technology and field demonstrations. Very little information is available on the effect of truck platoons on bridges. This research studied these effects at the strength limit state. Several scenarios involving different configurations of trucks and the number and spacing of trucks in the platoons were investigated to determine the effective truck platoon configurations that may be allowed without having detrimental effects to existing bridges. The number of bridges expected to be affected by each platoon configurations per State was determined and tabulated.
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