Publication Detail

Development of a Pavement Maintenance Cost Allocation Model


Research Report

Suggested Citation:
Kitamura, Ryuichi, Huichun Zhao, A. R. Gibby (1989) Development of a Pavement Maintenance Cost Allocation Model. Institute of Transportation Studies, University of California, Davis, Research Report UCD-ITS-RR-89-03

The objective of this study is to determine the factors that influence pavement maintenance costs of California state highways, and to evaluate the impact of heavy truck traffic on maintenance cost. To this end, over 1,100 1-mile sections of state highways are randomly sampled, and data from various sources are integrated to form a data base containing the information on traffic, weather, geometric conditions, and pavement maintenance costs for the sample sections.

Following an extensive explorative analysis of the data, a model of pavement maintenance cost is statistically formulated. The most significant finding is that heavy truck (5 or more axles) traffic has a much larger impact on pavement maintenance cost than does light truck traffic or passenger car traffic. The estimation results indicate that, on a typical roadway, the average annual maintenance cost per heavy truck per day amounts to $7.60 per mile per year, while the corresponding cost per passenger car is approximately 8ยข. The study further shows that one additional heavy truck per day will cost annually an additional $3.73 per mile of a roadway for pavement maintenance. An increase by 50 heavy trucks will cost $183.10 per year per mile. The corresponding cost increases due to passenger car traffic are $0.04 and $2.18 per year per mile, respectively. This study thus establishes that one heavy truck is approximately equivalent to 90 light trucks or passenger cars in terms of their impact on pavement maintenance cost.