HDM-A Tool kit for Pavement Management

HDM-4 is a computer software for Highway Development and Maintenance Management System. It is a decision making tool for checking the Engineering and Economic viability of the investments in road projects. The World Bank for the global use has developed it.

HDM-4 is the new windows version after HDM-III with incorporation of many new features so that it can be used in any locality of the world with any environmental and engineering situation.Sponsors, Coordinators and researchers.

Overview of HDM-4 use in Bangladesh
Bangladesh have been using HDM software since long. The previous version HDM-III was in use till 1999 after which the new version HDM-4 is now in use. The Roads and Highways Department (RHD) is the main user of this software. The first annual Maintenance programme for the year 1999-2000 was done using HDM-III. The next annual Maintenance programme for the financial year 2000-2001 was prepared using the new version HDM-4. 

The consultants of a DFID financed Institutional Development Component (IDC) project is helping RHD since 1994 for the development of their technical skills to maintain their road network according to the modern maintenance management system. A new HDM Circle has been established in the Head Quarter to help attain this goal.

What Does HDM Do?

• Project Analysis
• Program Analysis
• Strategic Analysis
• Research, Policy and Regulation Analysis

Only describing the project analysis can be done for:

Maintenance of Existing roads

- Crack Sealing
- Pothole Patching
- Seal coat
- Single Bituminous Surface Dressing (SBSD)
- Double Bituminous Surface Dressing (DBSD)
- Carpeting
- Overlay
- Pavement strengthening

Improvement of existing roads
- Pavement reconstruction
- Pavement upgrading
- Road widening and geometric improvements
- Realignment

New construction
- Involves entirely new construction

Stage construction
- Planned improvements at fixed stages, say from HBB to Bituminous pavement.

Project evaluation
- Assessment of the performance of the completed project to see if objectives set out during appraisal have been met.

HDM-4 software System Architecture

Beside this HDM-4 also do the remain other three analysis as well.