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Costs & Revenues Associated with Overweight Truck Operations in Indiana

Costs & Revenues Associated with Overweight Truck Operations in Indiana. Tommy Nantung INDOT Research & Development Division July 22, 2014. Study Objectives. Main objective: Generate information to assist INDOT in updating or streamlining its permitting process for overweight (OW) trucks

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Costs & Revenues Associated with Overweight Truck Operations in Indiana

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  1. Costs & Revenues Associated with Overweight Truck Operations in Indiana Tommy Nantung INDOT Research & Development Division July 22, 2014

  2. Study Objectives • Main objective: • Generate information to assist INDOT in updating or streamlining its permitting process for overweight (OW) trucks • Intended to be based on data analysis pertaining to: • Cost of asset (pavement & bridge) damage due to OW trucks, • Enforcement costs and recommendations, • Revenue trends

  3. Background Information • On one hand… • INDOT needs highway operations policies that retain/attract industry even those that involve haulage of large loads, thereby enhancing economic development • On the other hand… • INDOT seeks policies that: • protect billions of taxpayer $ invested in highway infrastructure • do not lead to premature/accelerated deterioration of such assets through excess loading or undue safety hazard

  4. Background Information Facility Damage vs. Repair Expenditure Traffic Load vs. Facility Damage Repair Expenditure vs. Permit/ License Fees

  5. Estimating the Cost of Pavement Damage due to OW Trucks

  6. Results for OW Trucks with GVW 80,001 -108,000 lbs

  7. Results for OW Trucks with GVW 108,000 - 150,000 lbs Permit fee at time of the study (60 cents)

  8. Results for OW Trucks with GVW > 150,000 lbs Permit fee at time of the study ($1.00)

  9. Conclusions • Pavement asset damage costs herein are derived as a function of: • Pavement characteristics (e.g., functional class) • Vehicle characteristics (GVW, axle spacing, axle load) • Pavement damage cost estimates (average): • $0.006/ESAL-mile on Interstates • $0.218/ESAL-mile on non-NHS 9

  10. Conclusions • Consequences of ignoring reconstruction or maintenance expenditures (as in past studies) • Non-consideration of these expenditures can result in underestimation of pavement damage cost by 79% and 83%, respectively. • Bridge damage cost estimate • Example: a 5-axle truck weighing 80-108 kips, crossing a steel bridge 0-20 yrs of age, assuming 25% load share of damage, the damage cost is $0.007/foot/pass. 10

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