Frequently Used PMGSY Design Parameters (Indicative Quick Reference)

Frequently Used PMGSY Design Parameters (Indicative Quick Reference)

Parameter

Typical Standard Value

Single Lane Carriageway Width

3.75 m

Formation Width (Rural Road)

6.0 m

Shoulder Width

1.125 m each side

Camber for Bituminous Surface

2.5%

Camber for Gravel Surface

3–4%

Maximum Gradient in Plain Terrain

3.3%

Maximum Gradient in Hilly Terrain

5%–6% (terrain dependent)

Minimum Radius of Horizontal Curve

As per IRC:73

Design Life of Flexible Pavement

10 years

Minimum Cross Drainage Requirement

Based on a hydrological study

Quality Monitoring System

Tier-I, Tier-II, Tier-III

Pavement Design Basis

CBR Method

Recommended Drainage Type in Hills

Catch water & lined side drains

Preferred Road Surface

Bituminous Surface

Maintenance Liability Period

Typically 5 years

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