Calculates the costs incurred by road users, including fuel consumption, tire wear, travel time, and accident costs.

Valuing the time savings of passengers and cargo when road conditions improve.

To perform feasibility studies for public and private highway projects. Challenges and Best Practices

HDM-4 is more than just software; it is a framework for thinking about roads as assets rather than liabilities. It moves us away from "worst-first" repairs (fixing the broken roads) toward "optimal-first" strategies (fixing roads before they break).

Program analysis deals with mid-term planning, usually spanning 1 to 5 years. At this level, the software helps prioritize specific road links within a defined budget. It produces multi-year rolling investment programs, identifying which road segments receive routine maintenance, periodic overlays, or full reconstruction. 3. Project Analysis