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    HDM-4

    Providing a powerful system for:

    • Road management
    • Programming road works
    • Estimating funding requirements
    • Budget allocations
    • Predicting road network performance
    • Project appraisal
    • Policy impact studies 
  • Technical Support

    Technical Support

    Find out about the technical support service offered by HDMGlobal to help users use HDM-4 effectively.

  • Knowledge Base

    Knowledge Base

    View articles that address common questions received by HDM-4 Support.

  • Software Updates

    Software Updates

    For existing HDM-4 users, view the latest software release and the changes made before registering to receive the updates.

  • Training & Events

    Training & Events

    Find out about HDM-4 training courses offered by HDMGlobal and their partner organisations and other related events.

HDM-4 in Use

  • HDM-4 is regularly used as the World Bank’s model for appraising road investment proposals in developing countries. It has been used to assess more than 200 projects since 2008, with an estimated total value of more than £35 billion
    "Building better road networks", UKCDS