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    Providing a powerful system for:

    • Road management
    • Economic Analysis
    • 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
  • “Just to give you an indication of the scale and the importance of HDM-4, I can tell you that the World Bank currently has 162 active transport projects in its portfolio amounting to USS$31 billion, of which approximately US $20 billion are for connectivity (inter-urban and rural.) And in the pipeline is US$18 billion over the next three years.” Martin Humphreys, Lead Transport Economist, World Bank
    Launch of the Highway Development and Management Model (HDMM)
  • “PIARC is proud to support HDM-4 as it has done since the 1990s, as it is convinced that this tool is essential to ensure that road projects are well planned and that proper maintenance needs are identified.” Patrick Mallejacq, Secretary-General of PIARC
    PIARC Support for HDM-4