United States Department of Transportation
i
Impact of Truck Platooning on Loading of Bridges in Oregon
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2024-05-01
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[PDF-22.15 MB]
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Edition:Final Report
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Abstract:Truck platooning is an autonomous vehicle technology where multiple heavy trucks operate at close spacing. In 2018, Oregon House Bill HB 4059 Section 40 allowed limited implementation of such technology without requiring permitting or notification to ODOT. However, the close spacing of platooned trucks may impose loading on some bridges in excess of the load levels currently limited by the weight regulations that are applicable to individual trucks. This potential overloading could reduce the lifespan of Oregon bridges. To preserve the life of existing bridges and ensure the structural safety of bridges where truck platooning is expected, it is important to understand the magnitude of truck platoon loading effects. In this research, truck platoon technology and performed studies were reviewed. Moving load analyses were performed for design, OR legal, and OR permit loads in single and platoon configuration for single-span, two-span, and three-span bridges with span lengths ranging from 15 to 80 m. Platoon configurations studied included two and three vehicles with head spacings ranging from 3 to 18 m. Ratios of internal forces from truck platoons to legal and single-truck live loads were computed and analyzed in depth.
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