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RHD Operational Procedure Planning and Maintenance Wing
 
HDM - HDM Operation Division
 
OP/HDM/3.2 - Preparation of Annual Road Maintenance and Rehabilitation Needs Report
 
Purpose and Scope :

The purpose of this procedure is to describe how to prepare the Annual Road Maintenance and Rehabilitation Needs Report, which is mainly a prioritised list of roads (showing road no, link no, name, type of treatment required etc) to be prepared by the Operations Division of the HDM Circle.

The scope of this procedure will extend up to the offices in zones, wings, projects where the Annual Road Maintenance Plan are to be dealt with.
 
Definitions :

Annual Road Maintenance and Rehabilitation Needs Report: It is a plan showing the prioritised list of roads for the whole of road network of RHD produced by using HDM Model. The list includes routine, periodic and improvement works prioritised on the basis of npv/cost ratio.

HDM-4: It is 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 has developed it for use in the developing countries and the annual Road Maintenance Plan is produced with the help of HDM-4.
 
Responsibility :

Superintending Engineer HDM Circle Responsible for instigating the instructions to carry out the annual road network maintenance and rehabilitation needs report using HDM-4 as the, and approves the report.

Executive Engineer HDM Operation Division Responsible for carrying out the calibration of the RDWE and RUE models in HDM-4. Is responsible for the collection of data and for preparing the calibration report for the SEs approval. EE will assign SDE and AE to complete tasks as necessary.
 
Method :

4.1 PREPARATION OF NEEDS REPORT

1. Latest data for the network is used.

2. Details of works in the current year obtained from Monitoring Circle, Foreign Aided Projects and Maintenance Circle.

3. Affected sections flagged in the database for no inclusion in this years report

The RMMS will now produce the HDM-4 input file. The file is imported to HDM-4, VOC data is updated in HDM-4 and the analysis can now be run as follows:

4. Run HDM with existing data

unconstrained budget for the analysis period;

constrained budget for the first 5 years equal to the average of the first 5 years unconstrained budget run and unconstrained budget for the remaining analysis period;

constrained budget for the first 5 years equal to 75% of the average for the first 5 years unconstrained budget run and unconstrained budget for the remaining analysis period;

constrained budget for the first 5 years equal to 50% of the average for the first 5 years unconstrained budget run and unconstrained budget for the remaining analysis period;

constrained budget for the first 5 years equal to 25% of the average for the first 5 years unconstrained budget run and unconstrained budget for the remaining analysis period;

same procedure as described above is performed using a 3 year period.

5. Prepare graphs showing the implication on the condition (roughness) of the road network of different levels of budgets.

6. In the maintenance and rehabilitation needs report make separate chapters for sections to be included in the ADP, PMP and routine programs.
 
References :

HDM User Manual - various technical manuals produced by Birmingham University.
 
Procedure Flowchart :

The procedure flowchart for this procedure is detailed below -
 


 


 

 

For duties associated with each grade of personnel see

 

Updated on : 1/12/2003

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