Truck Platooning Impacts on Bridges: Phase II – Structural Serviceability
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2025-01-01
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Edition:Final Report from Sep. 2021 to Jan. 2025
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Abstract:Truck platooning is a new Connected and Automated Vehicle (CAV) application poised to rapidly affect the nation’s trucking operations, which could have several profound impacts on the national inventory of bridges. The current study goal is to investigate potential impacts to bridge serviceability, as well as evaluate the effect on the strength limit state from a probabilistic perspective. This is being done by quantifying the numbers and degree to which bridges might have their service life reduced from more widespread use of platooning operations for heavy trucking in the nation’s highway system. The focus is on determining bridge characteristics that may put a bridge at risk of not meeting current service limit state provisions found in the AASHTO LRFD Spec. (23 CFR 625.4(d)(1)(v)) and MBE (23 CFR 650.317). The calibration approach used in the development of the AASHTO LRFD Spec. (23 CFR 625.4(d)(1)(v)), as well as that used in recent NCHRP and other research projects, is applied to truck platooning to determine whether current rating methods and load factors are adequate for a truck platooning environment. Items considered include span length, continuity, material type, age, design standard, and design loading. The study investigated platooning parameters such as numbers of trucks, headway distance, and their level of penetration into trucking operations.
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