Question
Download Solution PDFRoadway width for National Highway and State Highway (two lanes) as per IRC is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFWidth of formation or roadway width:
It is the sum of the widths of pavements or carriageways including separators and shoulders. This does not include the extra land of formation/cutting.
These values suggested by IRC:
|
Road classification |
Roadway width in m |
|
|
Plain and rolling terrain |
Mountainous and steep terrain |
|
|
NH/SH |
12 |
6.25-8.8 |
|
MDR |
9 |
4.75 |
|
ODR |
7.5-9.0 |
4.75 |
|
VR |
7.5 |
4.0 |
∴ The width of National & State Highways in plain and rolling terrain for the two-lane is 12 m.
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