Design of Hill Road to predetermined standard is necessary so that travel is safe and comfortable.
Class 9 : Other District Road
Class 5 : Village Road
Road Land Width (Right of way): It is the land width required for Road Purpose.
Carriage Way : It is the portion of Roadway designed & constructed for vehicular traffic.
Roadway : It is sum of carriageway width and shoulder width on either side.It is exclusive of side drain & parapets.
Formation Width: It is Roadway width + side drain + parapets.
Shoulder: It is the portion immediately beyond the edges of carriageway on which vehicular traffic may pass occasionally.
AS PER LATEST IRC: THERE IS NO SINGLE LANE ROAD.
-Roadway width is exclusive of side drain width (usually 0.6m) & parapet width (usually 0.6m).
- In case Retaining wall with parapet is provided on valley side then earthen shoulder may not be provided.
-Strategic and Border Road for Military purpose shall be constructed for not less than two lane carriageway along with paved shoulder on Hill side + paved and earthen shoulder on valley side.
-In hard Rock, width may be reduced by 0.8m for two lane road.
AS PER IRC :52 -1981
AS PER BRO TI-1
In BRO TI , It is Roadway width + side drain + parapets.(side drain =0.6m & parapet =0.6m)
Camber : Camber is a slope given to the cross section of the carriage way.
Design Speed :
Sight Distance: It is the distance along the road surface at which driver has visibility of object at a specified height above the carriageway.
Minimum Radii of Horizontal Curve :
Vertical Alignment : Recommended Gradients
Passing Place on single Road:
Bridle Road , Bridle parth and OP Track : Isolated village habitation can be connected by bridle road or bridle path.(for the pocket of very small population in remote areas)
Class 9 : Other District Road
Class 5 : Village Road
Road Land Width (Right of way): It is the land width required for Road Purpose.
Carriage Way : It is the portion of Roadway designed & constructed for vehicular traffic.
Roadway : It is sum of carriageway width and shoulder width on either side.It is exclusive of side drain & parapets.
Formation Width: It is Roadway width + side drain + parapets.
Shoulder: It is the portion immediately beyond the edges of carriageway on which vehicular traffic may pass occasionally.
AS PER LATEST IRC: THERE IS NO SINGLE LANE ROAD.
-Roadway width is exclusive of side drain width (usually 0.6m) & parapet width (usually 0.6m).
- In case Retaining wall with parapet is provided on valley side then earthen shoulder may not be provided.
-Strategic and Border Road for Military purpose shall be constructed for not less than two lane carriageway along with paved shoulder on Hill side + paved and earthen shoulder on valley side.
-In hard Rock, width may be reduced by 0.8m for two lane road.
AS PER IRC :52 -1981
AS PER BRO TI-1
Camber : Camber is a slope given to the cross section of the carriage way.
Design Speed :
Sight Distance: It is the distance along the road surface at which driver has visibility of object at a specified height above the carriageway.
Minimum Radii of Horizontal Curve :
Vertical Alignment : Recommended Gradients
Bridle Road , Bridle parth and OP Track : Isolated village habitation can be connected by bridle road or bridle path.(for the pocket of very small population in remote areas)
No comments:
Post a Comment