This synthesis documents the state of the practice and knowledge of pavement management applications using Geographic Information Systems (GIS) and other spatial technologies. Pavement management systems (PMS) are supported by collecting and retaining a large amount of information that is normally available in a wide variety of formats, referencing systems, and media. GIS and other spatial data management and analysis technologies are particularly appropriate for integrating, managing, collecting, cleaning, analyzing, and presenting these data. This synthesis introduces PMS, GIS, and spatial analysis and discusses how the technologies have been combined to enhance the highway management process. It reviews the principal issues related to PMS data collection, integration, management, and dissemination; applications of spatial technologies for map generation and PMS spatial analysis; and implementation. Information for this report has been reviewed and synthesized from a variety of sources, including a literature review, an electronic survey of state practices, and follow-up telephone interviews with a select number of state transportation agencies. The survey of practice was conducted electronically using an interactive web-based survey tool developed by the Kansas Department of Transportation (DOT). The electronic questionnaire was sent to the pavement management contacts and GIS-T (GIS for Transportation) representatives (i.e., two per agency) from all 50 state DOTs, as well as to some Canadian provinces. A total of 73 responses, from 48 states and 4 Canadian provinces, was received. (Author/publisher) This report may be accessed by Internet users at http://www.trb.org/publications/nchrp/nchrp_syn_335.pdf
Samenvatting