The strategic analysis derived optimal capital and recurrent maintenance needs to clear existing maintenance backlogs and thereafter keep the road network in good condition on a sustainable basis. Highway Development and Management model (HDM-4), a computer model originally developed by the World Bank, is particularly useful because it integrates pavement performance models to the initial construction, maintenance and road user cost models thereby enabling economic and financial evaluation of a project or alternative projects. HDM-4 is the result of the International Study of Highway.
#HDM 4 MODEL SOFTWARE#
the test in Sweden was to explore the possibilities for using the HDM-4 model for. The Highway Development and Management Model (HDM-4) Version 1.3 was released in January 2002 which is the recom-mended software for evaluating highway investment options.
#HDM 4 MODEL TRIAL#
This involved adaptation and calibration of HDM-4 to accurately model pavement performance and road user effects in England, linking HDM-4 with the existing database system used by the Department for Transport in order to facilitate strategic level analysis and investigation of road investment choices, and conducting a trial strategy analysis of the English local road network to quantify long-term maintenance needs and assess the effects of different maintenance funding levels on the condition of the network and costs to road users. This was the first time HDM-4 was used for simulation of gravel roads. This paper describes the development of the World Bank's highway development and management model HDM-4 for use by the Department for Transport at the strategic level. The World Bank HDM-4 (Highway Development Management) model, must be adjusted to the speciiic conditions of a countIy or regin where theyare to be used. This quest can be accomplished by using decision support tools capable of predicting the long-term performance and costs of maintenance of the UK local road network.
The HDM-4 study was performed with the aim to define road works program and investment priorities by analyzing impacts of different budgets on future network condition. The UK Department for Transport is concerned to know that long-term investments in maintenance of local roads are contributing optimally to the UK economy, and that road maintenance funds are distributed equitably and provide value for money for the taxpayer. The paper describes the application of HDM-4 model for local roads in Bosnia and Herzegovina (BiH), in the Herzegovina-Neretva Canton (HNC).