Indian Road Congress (IRC) Recommendations

The Indian Roads Congress (IRC) is the Apex Body of Highway Engineers in the country. The IRC was set up in December, 1934 on the recommendations of the Indian Road Development Committee best known as Jayakar Committee set up by the Govt. of India with the objective of Road Development in India. 

Different recommendations made by IRC:

1. The maximum distention of vehicle given by  IRC,

Sr. No.	Dimension	Particular	Minimum Dimension
1	Width	Motor vehicle other than transportation vehicle	2.44 m
2		Transportation vehicle	2.7 m
3	Length	Motor vehicle other than transportation having less than two axle	9.5 m
4		Transportation vehicle with rigid frame with two or more axles	11.25 m
5		Articulated vehicle with more than two axles	16 m
6		Truck / trailer or combination of both	18 m
7	Height	Double decker buses	4.75 m
8		Other for normal application	3.8 m
9		Other for carrying ISO containers	4.2 m

 

2. Width of roadway for different class of roads,

Sr. No.	Road Type	Lanes	Roadway Width (m)
			Plain & Rolling Terrain	Mountainous and Steep Terrain
1	NH & SH	Single	12.00	6.25
		Double	12.00	8.25
2	MDR	Single	9.00	4.75
		Double	9.00	-
3	ODR	Single	7.50	4.75
		Double	9.00	-
4	VR	Single	7.50	4.00

3. Maximum permissible width of vehicle, 

Sr. No.	Class of Road	Width of Carriageway
1	Single Lane	3.75 m
2	Two lanes, without raised kerbs	7.00 m
3	Two lanes, with raised kerbs	7.50 m
4	Intermediate carriageway	5.50 m
5	Multi lane pavements	3.50 m per lane

4. Right of way for different classes of roads in India (in m),

Sr. No.	Class of Road	Plain and Rolling Terrain (m)		Mountainous and Steep Terrain (m)
		Rural Road	Urban Road	Rural Road	Urban Road
1	NH & SH	45	30	24	20
2	MDR	25	20	18	15
3	ODR	15	15	15	12
4	VR	12	10	09	09