Pavement Preservation Journal - Winter 2009 - (Page 17)

Add Pavement Preservation to Boost Pavement Management By DingXin Cheng, Mary Stroup-Gardiner and Sui Tan dding pavement preservation (PP) components to a pavement management system (PMS) can benefit both PMS and the pavement preservation program. The potential benefits of a successful pavement preservation program are numerous, including higher customer satisfaction, increased safety, increases in cost savings and cost effectiveness, improved pavement condition, improved strategies and techniques and better-informed decisions. A pavement preservation program should be included in an agency’s pavement management system. Some early PMSs consisted primarily of a database, a condition index and a ranking system to develop a list of projects following the “worst first” approach, but pavement preservation is a proactive approach. Instead, it’s more costeffective when pavement preservation projects are applied at a right time and group together. Even better, a pavement management system can support systematic and effective pavement preservation treatment programming. On the other hand, a successful pavement preservation program can support a PMS on cost-benefit funding allocation and optimized project programming. However, it is a challenging task to add the pavement preservation component to a PMS. It requires the knowledge of pavement preservation, asset management, system engineering and support from administrator. PMS BOOSTS PRESERVATION A PMS can be used as a tool to effectively program preservation for an agency. An effective PMS helps identify good candidates for preventive maintenance since it has the roadway distress survey and maintenance history. It also can help determine the optimum time for performing maintenance treatments. Fig. 1 illustrates the concept of finding the optimum maintenance and rehabilitation (M and R) time. Reconstruction and maintenance costs rise as a pavement ages. However, if maintenance or rehabilitation is carried out too early, the costs are prohibitively high. There is an optimum time at which maintenance can be performed to provide the maximum cost effectiveness. If Fig. 1: Optimum Time to Fix Pavements (Hicks, Seeds, and Peshkin 2000) 100 Pavement Condition Index, PCI Do Nothing Reconstruction PP 0 0 Rehab 40 50 Years of Service, yr Fig. 2: Serviceability of Different Treatment Strategies an agency’s PMS does not include a pavement preservation component, a complete history of pavement preservation activities may not be traceable as maintenance crews may not record preservation activities. PRESERVATION BOOSTS PMS Conversely, a pavement preservation component can help an agency using PMS allocate funding more cost effectively. It can support PMS to rank and select projects for the right Winter 2009 pavement preservation journal 17

Table of Contents for the Digital Edition of Pavement Preservation Journal - Winter 2009

Pavement Preservation Journal - Winter 2009
Contents
President’s Message
International Preservation Conference to Feature Flexible, Rigid Pavements
A Tribute to Jim Sorenson
Add Pavement Preservation to Boost Pavement Management
L.A. Street Preservation: It’s For, and About, the Public
StreetSaver Software Key to Bay Area Asset Management, Regional Fund Distribution
Integrating Pavement Preservation Practices
Revised Manual Provides Basics of Asphalt in Preservation
International Road Federation Hears from Lone Star State on Pavement Preservation
Iowa State Hosts Grad Course in System Asset Management
A New FP2 for Changing Times
Stimulus Package Boosts Preservation in Northeast
Calendar of Events
Index to Advertisers
Advertisers.com

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