Interactive GIS Map-based Decision Support Program on Multiyear Pavement Needs Analysis

摘要

This paper presents the methodology and application of an interactive GIS map-based decision support program developed for Georgia Department of Transportation’s multiyear pavement needs analysis system. The program integrates GIS capabilities, including visualization, identification, and spatial analysis, with multiyear pavement performance forecasting, treatment determination, and pavement preservation needs analysis. It allows engineers not only to visualize spatial and temporal pavement needs analysis results on a GIS map, but also to perform various what-if scenario analyses directly on the GIS maps. Thus, engineers can easily incorporate additional data and make effective decisions. A case study using the actual historical pavement condition data surveyed by the Georgia Department of Transportation is presented to illustrate the capabilities of the developed program.