CivilJungle

  • Home
  • Civil
    • Detail A to C >>
      • Aggregate
      • Beam
      • Bitumen
      • Brick
      • Bridge
      • Cement
      • Civil
      • Column
      • Concrete
    • Detail D to I >>
      • Dampness
      • Design
      • Difference
      • Electrical
      • Excel Sheet
      • Flooring
      • Formwork
      • Foundation
      • Irrigation
    • Detail J to R >>
      • Mortar
      • Plaster
      • Pile
      • Plumbing
      • Quantity Survey
      • Reinforcement
    • Detail S to S >>
      • Sampling
      • Self Compact Concrete
      • Slab
      • Soil Mechanics
      • Staircase
      • Stone
      • Survey
    • Detail T to Z >>
      • Technology
      • Test
      • Transportation
      • Window
      • Wood
  • Difference
    • Difference Between A to C >>
      • Difference Between 33, 43 and 53 Grade Cement
      • Difference Between Asphalt and Bitumen
      • Difference Between Beam and Column
      • Difference Between Bitumen and Tar
      • Difference Between Bridge and Culvert
      • Difference Between Carpet Area and Built-up Area
      • Difference Between CPM and PERT/PERT Vs CPM
    • Difference Between F to L >>
      • Difference Between Fat Lime and Hydraulic Lime
      • Difference Between Flexible Pavement and Rigid Pavement
      • Difference Between Flyover and Bridge
      • Difference Between Footing and Foundation
    • Difference Between L to M >>
      • Difference Between Lap Length and Development Length
      • Difference Between Lime and Cement
      • Difference Between M Sand Vs River Sand
      • Difference Between M25 and M30 Concrete
      • Difference Between Mortar and Concrete
    • Difference Between N to P >>
      • Difference Between One Way Slab and Two Way Slab
      • Difference Between OPC Vs PPC
      • Difference Between Plasticizer And Superplasticizer in Civil
      • Difference Between Plinth Level, Sill Level, and Lintel Level.
    • Difference Between P to W >>
      • Difference Between Pre-Tensioning and Post-Tensioning
      • Difference Between Short Column and Long Column
      • Difference Between Timber And Wood
  • Excel Sheet
    • How to >>
      • How to Building Construction Process Step by Step
      • How to Calculate Slab Steel Quantity from Drawing | BBS of Slab
      • How to Calculate Staircas
      • How to Excavation Calculation in Excel Sheet
      • How to Find House Construction Cost
    • Building Estimation Step by Step In Excel Sheet
    • Estimation for Building Works
    • House Construction Cost Calculator Excel Sheet
    • House Construction Cost Calculator Excel Sheet For Ground Floor(G.F.), G.F.+1, G.F.+2, G.F.+3,
  • Tools
    • Rate Analysis >>
      • Rate Analysis of Aluminum Door
      • Rate Analysis of Wooden Door
      • Rate Analysis of Brick Work
      • Rate Analysis for Concrete
      • Rate Analysis for Dry Lean Concrete
      • Rate Analysis of Plastering
    • Brick Masonry Calculator
    • Calculator for Cutting Length of Stirrups
    • Concrete Material Calculator
    • House Construction Cost Calculator
    • Plaster Calculator
    • Steel Bar Calculation
    • Trapezoidal Footing Calculato
  • IS Code
    • Is 1200 Important Point Part-1
    • IS Code for Civil Engineer [Q&a]
    • IS 456 Most Important Point Part- 1
    • IS 516:1959 Most Important Point (Method of Tests For Strength of Concrete)
  • हिंदी

What Is Camber in Road |  Types of Camber | Advantages of Camber in Road

Camber in Road

Important Point

  • What Is Camber in Road?
  •  Types of Camber 
    • #1. Composite Camber.
    • #2. Straight Camber or Sloped Camber
    • #3. Two Straight Line Camber.
    • #4. Barrel Camber.
  • Why Is Camber Provided In Road?
  • Advantages of Camber in Road
    • Method of Providing Camber in Road
    • Recommended Values of Camber in Road For Different Types of Road surface by IRC: 
    • A drawback of Providing Excessive Road Camber Height
    • Camber In Highway
    • Types of Camber

What Is Camber in Road?

It’s mostly found in the highways the median part of the road surface is elevated with regards to the edges. This slope from the diagonal direction is known as the Camber.

The purpose of the camber is to drain out the rainwater from the road surface around the edges.

Camber is the slope provided to the road surface at the transverse direction to drain off the rainwater out of the road surface. It is also known as the cross slope of the road.

The rate of camber is normally indicated by 1 : n ( 1 in n ) (1 vertical to n horizontal) or in proportions as n % (for instance, 1 in 50 or 2 %).

The design values of cambers are primarily based on the type of pavement and also on the average amount of rainfall in the area. Steep cambers are useful for eliminating surface water.

But they’re not recommended since they will wear down the surface. Normally, cambers of slope 2 to 3% are arranged.

On straight sections of roads, they’re shoulders with higher cross fall relating to that of the carriageway by 0.5%.

Also, read: What Is Grouting | Type of Grouting | Advantage of Grouting

 Types of Camber 

  • Composite camber.
  • Sloped or Straight camber.
  • Two straight line camber.
  • Barrel camber.

#1. Composite Camber.

Composite camber might be composed of partly parabola and partly straight line or two straight lines having different slopes.

Generally, the central part of the road is made parabolic and provided with straight slopes near edges. This helps to decrease in intensity of pressure by increasing the contact area of the wheel.

composite-camber

#2. Straight Camber or Sloped Camber

This type of camber is provided by meeting two straight surfaces in the crown. Crown is the central and top most point in the surface of the road.

The edge shape produces inconvenience to the traffic, so it isn’t used in general.

Straight-line-camber

#3. Two Straight Line Camber.

It consists of both straight lines steeper near the edges and flatters near the crown. This type of camber is considered to be the best for Indian roads.

Two Straight Line Camber

#4. Barrel Camber.

It consists of a continuous curve, either parabolic or elliptical. This type of camber is preferred for roads used by fast-moving vehicles.

parabolic-camber

Also, read: Estimation for Building Works | Centre Line Method | Long and Short Wall or Out and in to in a method

Why Is Camber Provided In Road?

  • To protect the road by preventing the entry of surface water to the subgrade soil through the pavement.
  • To prevent the entry of water to the bituminous pavement layers.
  • To remove the rainwater from the pavement surface as quickly as possible and to allow the pavement to get dry soon after the rain.

Advantages of Camber in Road

This prevents rainwater to accumulate at local shrinkages or depressions and forming water pools around the road surface that are disagreeable to the public as well as to the road structure.

Camber provides quick drainage of rainwater and so saves the foundation course of this road structure from weakening from the percolation of rainwater to it through the road surface.

Also, read: Carbon Steel vs. Stainless Steel | What Is Carbon Steel | What Is Stainless Steel

Method of Providing Camber in Road

Normally, the camber is provided on the straight roads by raising the center of the carriageway with respect to these edges, forming a crown or highest point on the center-line.

At horizontal curves with superelevation, the surface drainage is effected by raising the outer edge of the pavement with respect to the inner edge while providing this desired superelevation.

The rate of camber or cross slope is generally designed by 1 in n, which means the transverse slope is at ratio 1 vertical to”n” horizontal. Camber can be expressed in percentage. If the camber is n%, the cross slope is n in 100.

Recommended Values of Camber in Road For Different Types of Road surface by IRC: 

Sr. No. Type of Road Surface  Range of Camber in Areas of
Low Rainfall Heavy Rainfall
1 Cement concrete and thick bituminous surface 1 in 60 or 1.7% 1 in 50 or 2.0%
2 Thin bituminous surface 1 in 50 or 2.0% 1 in 40 or 2.5%
3 Water bound macadam and gravel pavement 1 in 40 or 2.5% 1 in 33 or 3.0%
4 Earth Road 1 in 33 or 3.0% 1 in 25 or 4.0%

A drawback of Providing Excessive Road Camber Height

  • It reduces the road width as everyone will try to move in the middle of the road.
  • The road will wear and tear on the edges.
  • The passengers feel they unbalance and discomfort during the journey.
  • Chances of accidents will increase.

Short Note

Camber In Highway

  • Camber: Camber is the transverse slope provided to the road surface for the drainage of the rainwater for the better performance of the road. Camber can be written as 1 in n or x%. 
  • Parabolic Camber : Parabolic camber is provided by providing a parabolic shape to the surface of the road.

Types of Camber

  • Traditional Camber: This is known as traditional camber because once upon a time pretty much all snowboards were made with this profile.
  • Continuous Rocker/Reverse Camber: This has many names – rocker, reverse camber, anti camber, banana and continuous rocker come to mind.  But essentially it is the opposite of traditional camber.
  • Flat Camber: Just like it sounds this profile has no camber or rocker – it’s flat between the contact points.
  • Hybrid Profiles: Like the name suggests, hybrid profiles are a mix of camber, flat and rocker. There are heaps of different combinations of this employed by snowboard manufacturers.

Like this post? Share it with your friends!

Suggested Read –

  • Difference Between Carpet Area and Built-up Area
  • What Is a Field Dry Density Test | Different Type of Field Density Tests
  • What Is Plaster | Plaster Ratio | History of Plastering | Requirements of Good Plaster
  • What Is Glass Fiber Reinforced Gypsum | Applications of GFRG | Disadvantages of The GFRG Panel
  • What Is Structural Settlement | Causes For Structural Settlement | What Is Soil Settlement & Foundation Structural Settlement

By Krunal Rajput

About Krunal Rajput

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil Engineering. I am a Degree Holder in Civil Engineering.

You can find him on Facebook, Twitter, Tumblr, Instagram and Google News.

Comments

  1. Sayed says

    20th September 2021 at 3:15 pm

    How to measure Camber of road on site?

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Write for Us and Earn Money

WRITE For US

Popular Post

What Does Parapet Mean | Types of Parapet Wall | Uses of Parapet Wall
What Is a Flight of Stairs | Types of Stairs | How Many Stairs in a Flight | Some Facts About Stairwells
Cinder Block Vs Concrete Block | What Is Cinder Blocks | What Is Concrete Blocks
What Is Shoring In Construction | Type of Shoring
Floating Slab Vs Monolithic Slab | What Is Monolithic Slab | What Is Floating Slab
H-Beam vs I-Beam | What Is H-Beam | What Is I-Beam

MIND BEHIND CIVILJUNGLE

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil/Mechanical/Electrical Engineering. I am a Degree Holder in Civil Engineering.

You can find him on Facebook, Twitter, Tumblr, Instagram and Google News.

ADVERTISE

At CivilJungle, we clarify civil engineering and publish all the happenings & news of civil engineering.

Get Traffic & Exposure. We help brands optimize their online presence & performance.

MORE DETAIL

CONNECT WITH US


Privacy Policy | Contact Us | Cookie Policy | Sitemap | Sitemap for Hindi

............................... .............................. .............................

© Copyright 2019-2022 CivilJungle.com | The Content May Not Be Reproduced On Other Websites | Website Maintained By CivilJungle