[PDF] Bridge Management Systems For Transportation Agency Decision Making eBook
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This study gathers information on current practices that senior managers at transportation agencies use to make network-level decisions on resource allocations for their bridge programs. In particular, the study explores how agency bridge management systems are employed in this process. Information was gathered through a review of literature on U.S. and international bridge management, a survey of U.S. and Canadian transportation agencies, and 15 in-depth interviews with state DOT executive and bridge managers.
Transportation Asset Management (TAM) systems are in use at a significant number of transportation agencies. These systems can be used to effectively allocate resources and continuously inventory and monitor the condition of transportation infrastructure assets. Risk-oriented decision making is becoming an increasingly important component of the management process at many organizations, including transportation agencies. TAM systems can be used to incorporate risk assessment and risk management techniques at transportation agencies.
American Association of State Highway and Transportation Officials
Author : American Association of State Highway and Transportation Officials Publisher : Page : 32 pages File Size : 34,9 MB Release : 1993 Category : Bridges ISBN :
The national age distribution of bridges indicates there will be growing replacement needs for structures built during the 1930s and earlier, and growing deck repair and replacement needs for those built during the Interstate construction era. Agencies responsible for managing the nation's bridges must use limited funds as wisely as possible. A Bridge Management System (BMS) can help transportation agencies evaluate current and future conditions and needs and determine the best mix of maintenance and improvement work on a road network over time with and without budget limitations. These guidelines set out the minimum requirements of a BMS capable of providing this type of evaluation. At the minimum, a BMS should consist of both procedures for coordinating various organizational units and technical inputs and a computerized database and decision support tool. These minimum requirements should not be construed as mandates but rather as essential features of a management system capable of best allocating funds to bridges on a network in order to protect safety, preserve the national investment in bridges, and serve commerce and the motoring public. The guidelines describe the scope of the bridge management problem, present the genesis and objectives of BMS, detail the essential features, explain alternative approaches to developing a BMS, recommend implementation steps, address issues concerning integration of infrastructure management systems, and suggest other capabilities an agency may wish to incorporate into its BMS.
During the past two decades, it has been generally acknowledged that life-cycle bridge analysis can be a systematic tool to address efficient and effective bridge management under uncertainty life-cycle management at the bridge network level can lead to an improvement in the allocation of limited financial resources, ensuring the safety and functionality of the bridge network life-cycle management of bridges and bridge networks based on resilience and sustainability can improve their resistance and robustness to extreme events such as earthquakes, tsunamis, floods, and hurricanes bridge management should consider the impact of environmental conditions and climate change This book addresses important concepts and approaches developed recently on bridge safety, maintenance, and management in a life-cycle context. Bridge life-cycle performance and cost analysis, prediction, optimization, and decision making under uncertainty are discussed. The major topics include bridge safety and service life prediction; bridge inspection and structural health monitoring; bridge maintenance; life-cycle bridge and bridge network management; optimum life-cycle bridge management planning; resilience and sustainability of bridges and bridge networksunder hazards; and bridge management considering climate change. By providing practical applications of the presented concepts and approaches, this book can help students, researchers, practitioners, infrastructure owners and managers, and transportation officials to build up their knowledge of life-cycle bridge performance and cost management at bothproject level and network level under various deteriorating mechanisms, hazards and climate change effects.