Page 41 - Unit 1: Introduction of Highway and Engineering

Civil Engineering Department | DCC3113 : Highway & Traffic Engineering

Standard Road System in Malaysia

• For the design purpose, roads are classified into six types (standards) according to the
usage and traffic volume of the respective roads

Standard Application

R1/U1 Lowest geometric design standards
One-way traffic
e.g : Entrance to the restricted area or low-cost housing
ADT < 150

R2/U2 Low geometric standards for two way flow with non-control access
Applied only to local traffic with low volumes of commercial traffic
e.g : Minor roads and local streets
ADT = 150 - 1000
R3/U3 Low geometric standards and serves mainly local traffic with partial or no access control
e.g : Secondary roads, collector or major local street
ADT = 1000 - 3000

R4/U4 Medium geometric standards with partial access control
e.g : Primary, secondary, minor arterial and major collector roads
ADT = 3000 – 10,000
R5/U5 High geometric standards with partial access control
e.g : Primary and arterial roads
ADT > 10,000

R6/U6 Highest geometric standards with full access
e.g : Rural and urban expressway

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Prepared by : SITI ZURAIFA BINTI MD SAH, zuraifa@pmu.edu.my