MULTIYEAR PAVEMENT-REHABILITATION PLANNING ENABLED BY GEOGRAPHIC INFORMATION SYSTEM: NETWORK ANALYSES LINKED TO PROJECTS

A pavement-rehabilitation planning system enabled by a geographical information system (GIS) is described; it can perform multiyear projectlinked network pavement-rehabilitation analyses subject to funding availability, minimum performance requirements, and other constraints. The system first uses information on the current and historical project-level pavement-condition evaluation stored in the central database to forecast project performance ratings and distresses. It then determines appropriate rehabilitation methods and costs and, finally, calculates life-cycle costeffectiveness ratios for all projects in the pavement network. With this information, the program performs analyses to determine multiyear minimum funding required to meet prescribed pavement-performance requirements and constraints and to determine optimum pavementrehabilitation plans subject to funding availability and other requirements, such as balancing funding distribution or future pavement performance among state congressional distr...