Development of Performance-Based Specifications for Roadside Maintenance
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Performance-based specifications (PBS) are emerging as an alternative to method specifications for roadway maintenance. Under PBS, the highway agency specifies measurable performance standards that the maintenance contractor is required to meet throughout the contract period. PBS for roadside maintenance are still evolving. This paper describes the development and field trials of PBS for roadside maintenance, including performance standards, a level of service (LOS) method for assessing compliance with these standards, and pay adjustment formulas. Twelve roadside asset types and maintenance activities are considered in these PBS, including safety elements (attenuators, guard rails, and chain link fences); drainage elements (ditches and front slopes, culverts and cross-drain pipes, and drain inlets); cleanliness elements (removal of litter, debris, and graffiti); and vegetation (roadside grass, landscaped areas, trees, shrubs, and vines). The developed PBS were tested on five highway corridors in Texas. 2013 American Society of Civil Engineers.