DESIGN SPEED ( RURAL ) ( AMMENDED SEPT. 1989 )
DESIGN SPEED ( URBAN ) ( AMMENDED SEPT. 1989 )
Design standard Design speed ( km/hr )Area type
I II IIIU6 100 80 60U5 80 60 50U4 70 60 50U3 60 50 40U2 50 40 30U1 40 30 30
U1a 40 30 20
Note:
Type I = Relatively free iri road location with very little problems ns regards land acquisition, affected buildings or other socially sensitive areas.
Type II = Intermediate between I and II.
Type III = Very restrictive in road location with problems as regards and acquisition, affected buildings and other sensitive areas.
Design speed Design speed ( km/hr )Terrain
Flat Rolling MountainousR6 120 100 80R5 100 80 60R4 90 70 60R3 70 60 50R2 60 50 40R1 40 30 20
R1a 40 30 20