Best Practices in Geographic Information Systems-Based Transportation Asset Management

摘要

Maps are powerful tools. They orient. They guide. They provide a sense of scale and distance. They are a universal language, accessible to people from different personal and professional backgrounds. In a transportation planning context, maps provide a flexible canvas for communicating important information such as the location of structurally deficient bridges and proposals for future improvement projects. Geographic information systems (GIS), which are modern mapping technologies, allow transportation agencies to harness the power of maps more quickly and inexpensively than ever before. Agencies can use GIS to visualize information about their bridges, highways, and other assets. They can also use GIS to plan maintenance trips and evaluate design alternatives to manage their assets more effectively. Maps are becoming commonly used in transportation asset management (TAM) programs that help agencies to strategically invest in their infrastructure. GIS, when applied to TAM, can help agencies communicate technical information more simply, professionally, and persuasively. This report provides background on GIS and asset management, describes how public agencies have been integrating the two, and identifies benefits and challenges to doing so. The information presented is gleaned from a literature review and interviews with several state departments of transportation (DOTs) and one county agency. The report also identifies some leading industry trends and new, innovative approaches to using GIS for TAM.