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TOPICS 
-Detailed Classification of Roads 
-Cross section of Road and its Elements 
-Camber 
Prepared by-SHUBHAM P.SADH, C...
11/6/2014 
CLASSIFICATION OF ROADS 
GENERAL 
TYPE OF CARRIGE WAY 
TYPE OF PAVEMENT SURFACESEASONS 
MODIFIED 
1)URBAN 
2)NO...
11/6/2014 
(1)GENERAL:-Universally/Generally, roads are classified in two main categories: 
(i) Urban Roads, (ii) Non-Urba...
11/6/2014 
(ii)Non-Urban/Rural Roads:-Roads which are located in the non- urban areas and connect cities and townsacross t...
11/6/2014
11/6/2014
11/6/2014 
(2)Dependingon use during different seasons:- 
-All weatherroads 
-Fairweather roads 
(3) Based on the type of ...
CROSS-SECTION OF ROAD AND ITS ELEMENTS 
11/6/2014
11/6/2014 
The various components of highway cross-section are as under: 
1.Carriage way 
2.Formation width 
3.Right of w...
11/6/2014 
KERBS:-The boundaries between pavement and shoulders or footpaths are known as Kerbs. 
OR 
A Kerbis a vertical...
11/6/2014
11/6/2014 
Functionally they could be of three types: 
1.Low or mountable kerbs: These kerbsare indicators between the bu...
Camber Or Cross slope 
11/6/2014
11/6/2014 
Camber:-Camber or Cross slope is the slope provided to the road surface in the transverse direction to drain o...
11/6/2014
THANK YOU 
Prepared by-SHUBHAM P. SADH, Civil Engineering Department-5thsemester, H.J.D. Institute of Technical Education ...
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Highway Engineering topics

Some of the basic topics of Highway Engineering

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Highway Engineering topics

  1. 1. TOPICS -Detailed Classification of Roads -Cross section of Road and its Elements -Camber Prepared by-SHUBHAM P.SADH, Civil Engineering-5thsem, H.J.D. Institute, Kera Highway engineering (Reference-Principles and Practices of Highway Engineering –Dr.L.R.Kadyali, Dr. N.B.Lal)
  2. 2. 11/6/2014 CLASSIFICATION OF ROADS GENERAL TYPE OF CARRIGE WAY TYPE OF PAVEMENT SURFACESEASONS MODIFIED 1)URBAN 2)NON- URBAN/ RURAL 1)ALL WEATHER 2)FAIR WEATHER 1)PAVED 2)UNPAVED 1)SURFACE 2)UNSURFACED 1)PRIMARY 2)SECONDRY 3)TERTIARY
  3. 3. 11/6/2014 (1)GENERAL:-Universally/Generally, roads are classified in two main categories: (i) Urban Roads, (ii) Non-Urban/Rural Roads. (i)Urban Roads:-Roads which are located within cities, towns and other inhabited areas and come under the jurisdiction of municipalities, cantonment boards and Post trusts. -These roads are further classified into the following classes: (a) Expressways:-Superior types of roads facilities designed for high speed, high traffic volumes and safety. (b) Arterial Roads (c) Sub-arterial Roads (d) Collector Roads:-Provide access to arterial streets and they collect and distribute traffic from and to local streets. (e) Local Roads:-Provide access to abutting property. Arterial and sub-arterial are roads primarily for through traffic on a continuous route.
  4. 4. 11/6/2014 (ii)Non-Urban/Rural Roads:-Roads which are located in the non- urban areas and connect cities and townsacross the country. -Rural roads are further classified into five categories: (a) National Highways (NH):-Connect capitals of States, ports, foreign highways, large towns and industrial centers. (b) State Highways (SH):-These are arterial roads of a state connecting up with the national highways of adjacent state, district head quarters and important cities within the state. (c) Major District Roads (MDR):-They are the important roads within a district, serving areas of production and markets and connecting those with each other or with the main highways. (d) Other District Roads (ODR):-Serving rural areas of production and providing them with outlet to market centers, talukahead quarters, district head quarters or other main roads. (e) Village Roads (VR):-Connecting villages or groups of villages with each other to the nearest road of a higher category.
  5. 5. 11/6/2014
  6. 6. 11/6/2014
  7. 7. 11/6/2014 (2)Dependingon use during different seasons:- -All weatherroads -Fairweather roads (3) Based on the type of the carriage way:- -Paved roads -Unpaved roads (4) Based on the type of pavement surface:- -Surface roads -Unsurfaceroads (5) Modified classification of road by third 20-year RoadDevelopmentPlan (1981-2001) -Primary System -Secondary System -Tertiary System
  8. 8. CROSS-SECTION OF ROAD AND ITS ELEMENTS 11/6/2014
  9. 9. 11/6/2014 The various components of highway cross-section are as under: 1.Carriage way 2.Formation width 3.Right of way 4.Road shoulders 5.Side slope 6.Berm 7.Boundary stone 8.Side drain 9.Building line 10.Control line 11.Spoil bank 12.Borrow pits 13.Kerbs
  10. 10. 11/6/2014 KERBS:-The boundaries between pavement and shoulders or footpaths are known as Kerbs. OR A Kerbis a vertical or sloping member along the edge of a pavement or shoulder, forming part of gutter, strengthening or protecting the edge and clearly defining the edge to vehicle operators. •The Functions of Kerbare: -To facilitate and control drainage -To strengthen and protect the pavement edge -To present a more finished appearance -To assist in the orderly development of the roadside
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  12. 12. 11/6/2014 Functionally they could be of three types: 1.Low or mountable kerbs: These kerbsare indicators between the bundaryof a road shoulder. 2.Semi-barrier kerbs: It prevent encroachment of slow speed or parking vehicles to the foot path. 3.Barrier type kerbs:They are mainly provided to cause obstructions to the vehicles leaving the carriage way under emergency.
  13. 13. Camber Or Cross slope 11/6/2014
  14. 14. 11/6/2014 Camber:-Camber or Cross slope is the slope provided to the road surface in the transverse direction to drain off the rain water from the road surface. Camber is provided for the following purpose -To Remove the rain water from the pavement surface as quickly as possible. -To prevent entry of water into the bituminous pavement layers. -To prevent the entry of surface water into the sub grade soil through pavement. -To make the pavement surface attractive. The camber can be provided in three ways as shown in figure. 1.Parabolic camber 2.Straight camber 3.Combination of straight and parabolic camber.
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  16. 16. THANK YOU Prepared by-SHUBHAM P. SADH, Civil Engineering Department-5thsemester, H.J.D. Institute of Technical Education and Research, Kera

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