Technical reports on HDM-4 covering its development and application.  Some files are stored under the 'Road User Effects' and 'Pavement Deterioration' categories.


For additional presentations on HDM-4 look under Chris Bennett's reports.

HDM-III Development

Various working papers and other materials from the development of HDM-III.

HDM-4 Training

Training courses on HDM-4

HDM-4 Setup Files

HDM-4 setup files used in analyses in different countries.

Note: These files have been prepared by different consultants or agencies. There is no guarantee that the data, analytical approach, or any contents are sensible or correct. All responsibility rests with the end user for using anything in these files.


Reports on different aspects of HDM.


Reports on the calibration and validation of HDM.


Reports on the application of HDM for road investments prioritization.

Comprehensive book on the modelling of road user and environmental effects. It covers all aspects from vehcile operating costs to emissins. The models presented here formed the basis for the modelling in HDM-4, although the software does not fully implement the models.

Authored by Chris Bennett and Bill Paterson, the HDM-4 Series Volume 5 describes how to calibrate HDM-4. The report addresses a range of issues from Information Quality through calibrating pavement deterioration and road user effects.