01018941

Component

http://onlinepubs.trb.org...nepubs/circulars/ec078.pdf

For effective and cost-efficient preservation of a road network there is a need to evaluate the preservation needs, which are best determined with regular monitoring of pavement condition. Preservation needs are to be determined for budget estimation and subsequent allocation of the funds for various jurisdictions utilizing various maintenance categories. The preservation needs have been grouped together rather than individual activity assignment, i.e. preventative, corrective, restorative, and major rehabilitation/reconstruction (RC). By estimating the preservation needs and the budget required, it is possible for further planning of the work needed, operation schedules, and required crew mobilization. This paper describes a method that makes use of the condition of pavements based on sound engineering principles. The condition of pavements results in a condition state assignment of excellent, good, fair, poor, or very poor. The engineering principles relate to making preservation recommendations while achieving cost minimization optimization via transitional probability matrices defined by an absorbing state Markov chain. Condition data of homogenous pavement segments were obtained by consistently collecting surface distress condition “windshield” surveys. These surveys provide a means to evaluate the current health of the network, and (through the use of decision trees) aid in the determination of the recommended maintenance. Employing the methodology presented, the answers regarding the network-level pavement preservation needs can be quantified and condition forecasts determined for trade-off analyses. Recommended preservation needs are determined for the following conditions: sustaining the current condition distribution of pavements, changing the distribution of condition to any specified level, the minimum cost to sustain the network at a specified distribution of condition level after attaining it, and the resulting distribution of condition of the network under a selected maintenance strategy. Virginia Department of Transportation (VDOT) analysis has revealed that under a fixed set of maintenance activities every year the network would reach a stable distribution of condition state. The method defined in this paper will determine the resulting stable state and the required time to reach it. Additionally, there will be some brief discussion about the availability of condition data for both before and after major winter damage. This condition data has made it possible to actually quantify the effects of an increase in the rate of deterioration and the amount of damage to the network. Using the method defined in this paper VDOT can then calculate the minimum cost to bring it back to the pre-winter damage condition.

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01018923

English

pp 99-113

2005-10

Transportation Research Circular

First National Conference on Pavement Preservation

Web

Figures (5) ; References (5) ; Tables (4)

Budgeting; Condition surveys; Construction scheduling; Cost effectiveness; Decision trees; Deterioration; Markov chains; Matrices (Mathematics); Monitoring; Pavement distress; Pavement maintenance; Pavements; Planning; Preservation; Recommendations

Condition data; Road networks

Virginia

Design; Finance; Highways; Maintenance and Preservation; Pavements; Planning and Forecasting; Research; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I60: Maintenance

TRIS, TRB, ATRI

Feb 6 2006 8:46AM

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• Changing Our Way of Thinking: Have We Succeeded?
• Chip Sealing over Fabric in Borrego Springs, California
• Constructability of Longitudinal Construction Joints in Hot-Mix Asphalt Pavements with Sealers to Retard Future Deterioration
• Development of the Caltrans Maintenance Technical Advisory Guide
• Gravel Roads Asset Management
• Improving Safety as Part of a Pavement Preservation Program
• Integration of Preventive Maintenance in the Pavement Preservation Program: Ontario Experience
• Lessons Learned from the Long-Term Pavement Performance Program and Several Recycled Sections in Texas
• Pavement Preservation Training in Texas
• Performance Evaluation of Novachip Surface Treatment in Louisiana
• Preventive Surface Treatments Versus Traditional Corrective Maintenance Measures
• Quality Control and Quality Assurance on Chip Seal Projects
• Seal Coat Options: Taking Out the Mystery
• Sustaining Toll-Road Operation Through Performance-Based Management
• The Role of Pavement Preservation in Privatized Maintenance
• Warranty Administration in the Michigan Department of Transportation's Capital Preventive Maintenance Program