Civil Engineering - Highway Engineering - Discussion


The extra widening of pavements recommended by Indian Roads Congress for hill roads having radius 150 metres, is

[A]. 1.5 m
[B]. 1.0 m
[C]. 0.5 m
[D]. 0.0 m
[E]. 2.0 m

Answer: Option D


No answer description available for this question.

Gopi said: (Nov 9, 2015)  
r>300 only extra widening is provided.

Ng Reddy said: (Sep 28, 2016)  
r > 300 there is no need extra widening.

Anshu said: (Nov 23, 2016)  
150 < 300 so extra widening is provided.

Bappa said: (Feb 11, 2017)  
As the radius 150 less than 300m, so widening of curves provide by.0.6m (when r=101 to 300) for two lane. So given answer is wrong.

Asita said: (Feb 17, 2017)  
Extra widening of single lane pavements is 'Nil' for radius 101 to 300.

Roy said: (Oct 24, 2017)  
Provision of extra widening is nil, for a single lane of radius greater than 60m and for two-lane greater than 300 m.

Madhu said: (Dec 29, 2017)  
For single lane road r>100 , extra widening=0
For double lane road r>300, extra widening=0

In question, they have not mentioned whether it is a single lane or double lane road. so the question is contradictory.

Jayaprakash said: (Jun 16, 2018)  
As this is a hill roads no extra widening is provided.

Abhishek said: (Oct 7, 2018)  

Manish said: (Sep 6, 2019)  
150 lies between 5>R>300, so EW provide in both side.

Anirban Roy said: (Aug 24, 2020)  
For 1 lane road if R>60--> Ew= 0.
For 2 lane road if R>300--> Ew= 0.

Ravinder said: (Sep 7, 2020)  
Agree with you, thanks @Manish.

Vipul said: (Nov 29, 2020)  
Recommended by Indian Roads Congress.

For hill roads, the radius 150 metres no need to provide extra widening for any type of Road.

Mangesh said: (Dec 26, 2020)  
As per IRC if r>300 then no need to provide extra widening.
If r<50 then extra widening provided on only one side.
And if 'r' is 8n between 50 to 300m then extra widening provided on both sides.

Binod said: (Jul 1, 2021)  
As per IRC, in hilly roads r>50m, so no need to provide extra widening.

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