Abstract
With a large number of aging transportation infrastructure assets in North America and the growing problem of deterioration across the globe, managing these assets have been the subject of ongoing research. There is an overwhelming amount of maintenance and rehabilitation works to be done and selecting a suitable maintenance, repair or replacement (MRR) strategy is one of the most challenging tasks for decision makers. Limited budget and resources are even making the decision making process more challenging. Maintaining infrastructure to the highest possible condition while investing the minimal amount of money has promoted innovative contracting approaches. Transportation agencies have increased private sector involvement through long term performance-based maintenance contracts or what is called Performance-Based Contracting. PBC is a type of contract that pays a contractor based on the results achieved, not on the methods for performing the maintenance work. By looking into the literature, it is observed that agencies are expanding the amount of contracting they do in order to maintain and achieve a better standard of infrastructure facilities. Therefore, the objective of this paper is to study and review performance-based contracting for transportation infrastructure with emphasis on bridge assets.
Highlights
Civil infrastructure systems contribute to social and economic welfare through serving a large number of population and businesses
Transportation agencies in North America and around the globe have developed a variety of methods for undertaking Performance-Based Contracting (PBC), known by other names such as Performance-Specified Maintenance Contracts in Australia and New Zealand; Asset Management Contract in the US; Area Maintenance Contract in Finland and Ontario, Canada; Managing Agent Contract in the UK; and Contrato de REcuperacion y MAntenimiento (CREMA), which means Contract for Rehabilitation and Maintenance in Argentina [5]
The section aims to provide an overview of the key aspect that is needed before applying PBC which is the performance measures (PMs) that are used to define the levels of service (LOS)
Summary
Civil infrastructure systems contribute to social and economic welfare through serving a large number of population and businesses. Bridges are vital components of this civil infrastructure system in terms of mobility, economy, and development of communities Any failure in these structures may result in both human life and economic loss. With the conventional traditional method-based contracts, the owner agency specifies techniques, methods, materials, quantities, along with the time that the maintenance activities should be executed [1] This causes a limitation on the use of new materials and innovative techniques and technologies while maintaining the infrastructure asset [2]. Contractors have better competencies of fulfilling required performance level through innovating in such new and unproven technologies [3] This can be achieved by extending the short maintenance period to a longer period so that the performance levels can be satisfactorily measured over a longer duration. The objective of this paper is to study and review performance-based contracting for transportation infrastructure with emphasis on bridge assets as an alternative method for maintenance contracting
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