This study assesses the economic impact of overweight permitted vehicles hauling sugarcane on Louisiana highways. The highway routes being used to haul these commodities were identified, and statistically selected samples were used in the analysis. Approximately 270 control sections on Louisiana highways carry sugarcane are involved in the transport of this commodity. Three different gross vehicle weight (GVW) scenarios were selected for this study including: 80,000 lb., 100,000 lb. and 120,000 lb. The maximum current allowable GVW is 80,000 lb. while the maximum 100,000 lb. GVW is the permitted load for sugarcane trucks and is currently the highest load level permitted by Louisiana laws. The methodology for analyzing the effect of these loads on pavements was taken from the 1986 AASHTO Design Guide and involves determining the overlay thickness required to carry traffic from each GVW scenario for the overlay design period. Differences in the life of an overlay were calculated for different GVW scenarios and overlay thickness and costs were determined for a 20 year analysis period.
Evaluating the Effects of Heavy Sugarcane Truck Operations on Repair Cost of Low Volume Highways
2008
85 pages
Report
No indication
English
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