Table 4.3 : Broad Guidelines of Separations Required between Various Types of Roads and Residential Development

[ Table Summary ]

Road Type

Assumptions
- Traffic flow (veh/h)

Assumptions
- Vehicular speed (kph)

Distance Separation to meet L10(1h) 70dB(A) - without screening

Distance Separation to meet L10(1h) 70dB(A) - with screening*

Trunk

5 000

70

approx. 300m approx. 50m
Primary Distributor

3 000

50

approx. 180m approx. 40m
District Distributor/
Local Distributor

2 000

50

approx. 120m approx. 30m

* under or about 45 o angle of view of receiver on road traffic

 

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   Last revision date : May 2014