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RHD Operational Procedure – Technical Services Wing
Road Design and Safety - Road Design & Standard Division
OP/RDS/2.3 - Audit of Road Construction Projects
Purpose and Scope :

The purpose of this procedure is to ensure that the construction of roads by or on behalf of RHD comply with current RHD standards or variations/alternative standards that have been approved by the Chief Engineer, RHD. By definition audits that are carried out will be spot checks for compliance with RHD standards, while responsibility for ensuring contractor compliance with the contract documents for the works will remain with the designated “Engineer” for the contract.
Definitions :

Audit - in this context is deemed to mean spot checks on various aspects of the construction works and will not be a comprehensive verification of compliance with RHD design standards

Contract documents - means the design, specifications, conditions of contract and other documents forming the contract with the contractor for the construction works.
Responsibility :

Superintending Officer - has overall responsibility for the construction of an RHD road contract and supplying the Contract Documents to Road Design & Safety Circle for auditing.

The "Engineer" - is responsible for supervising the construction contract and ensuring compliance with the Contract Documents.

Executive Engineer - Road Design & Standard Division (EE-RDSD) - is responsible for visiting ongoing and recently completed road schemes to monitor compliance with the contract documents in terms of RHD design standards.
Method :


EE-RDSD will liaise with HDM Circle to supply information for the library of current and future (committed) road construction projects containing the following minimum information:

· Road no., Link no., Link description, (from Km to Km)

· Brief description of the works

· Name and contact details for the Superintending Officer and the Engineer

· Name of designers plus contact details

· Name of contractor

· Start date for construction

· Anticipated completion date

To assist EE-RDSD to maintain this database it will be the responsibility of the relevant ACE/Zones to notify Road Design & Safety Circle of projects they are to undertake, and to again notify the Circle when the construction works have commenced.


It will be the responsibility of the designers of RHD road projects to ensure that their designs comply with current RHD design standards. Although designs undertaken by external agencies (e.g. consultants) may have been subject to an audit by Road Design & Safety Circle, EE-RDSD should check that the designs being used for construction are certified correct by the designers and correspond to those that have been subject to audit (if carried out).

To this end the relevant Superintending Officer should advise EE-RDSD of any material changes that have been made to the original / audited designs and the authority under which these changes have been made.


At various times during the construction works EE-RDSD should make unannounced site visits to check that the works are being carried out in compliance with the contract documents i.e. RHD standards. Specifically EE-RDSD should check on the following:

· Safety - whether or not the contractor is undertaking the works with due regard to the safety of the public and his workforce e.g. signing, watching, lighting, fencing, shoring, etc.

· Standards - whether or not the contractor is using the correct materials and undertaking the required testing of these materials to show compliance with the standards, and whether or not the contractor is undertaking the works in compliance with the specifications for workmanship

· Environmental - whether or not the contractor is complying with the requirements of the specifications and conditions of contract with respect to mitigating the environmental impact of the works e.g. prevention of flooding, breeding of mosquitoes, pollution of watercourses, etc.

When visiting construction sites EE-RDSD will notify the “Engineer” in advance and whether accompanied or not during his site visit EE-RDSD should give no instructions to the contractor. Should he observe gross safety breaches in the contractor’s method of working he should immediately communicate these to the “Engineer”, but for all other issues (including safety) he should prepare an interim audit report on the construction works for submission to the Superintending Officer.


Upon substantial completion of the works EE-RDSD should carry out an inspection to check that the finished road works comply with the design standards shown in the contract documents, in particular in relation to carriageway markings, signs and tidying-up of the site. Specifically side ditches, culverts and footways (where provided) should be clear of obstructions and all debris, plant and unused materials removed.

Following this visit EE-RDSD should prepare a final audit report for submission to the Superintending Officer and then archive this, along with previous reports, on the project file.
References :

· BRTA Traffic Signs Manual Volumes 1 & 2 (version Jan 00)

· Geometric Design Standards of Roads & Highways Department (Nov2000)

· Pavement Design Standards for Roads & Highways Department (Version 1.4)

· Standard Tender Documents Volume 3 of 4 – Technical Specifications (May 2001)

· Standard Test Procedures (May 2001)

· Standard Tender Documents Volume 4 of 4 – Standard Drawings (under preparation)
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