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 Page 1


Classification and cross
section of Urban and Rural
Roads
Page 2


Classification and cross
section of Urban and Rural
Roads
Method of Classification
The roads are generally classified on the following
basis:
 Traffic Volume
 Load Transported or Tonnage
 Location and Function
Page 3


Classification and cross
section of Urban and Rural
Roads
Method of Classification
The roads are generally classified on the following
basis:
 Traffic Volume
 Load Transported or Tonnage
 Location and Function
Methods of Classification
The classification based on traffic volume or tonnage
have been arbitrarily fixed by different agencies and
there may not be a common agreement regarding the
limits for each of classification group. Based on the
traffic volume, the roads are classified as heavy,
mediumandlighttrafficroads.
Page 4


Classification and cross
section of Urban and Rural
Roads
Method of Classification
The roads are generally classified on the following
basis:
 Traffic Volume
 Load Transported or Tonnage
 Location and Function
Methods of Classification
The classification based on traffic volume or tonnage
have been arbitrarily fixed by different agencies and
there may not be a common agreement regarding the
limits for each of classification group. Based on the
traffic volume, the roads are classified as heavy,
mediumandlighttrafficroads.
Methods of Classification
These terms are relative and so the limits under each
class should be clearly defined and expressed as
vehiclesperdayetc.
Likewise the classification based on load or tonnage is
also relative and the roads may be classified as class-I,
II etc. or Class A, B etc. and the limits may be
expressedastonnesperday.
Page 5


Classification and cross
section of Urban and Rural
Roads
Method of Classification
The roads are generally classified on the following
basis:
 Traffic Volume
 Load Transported or Tonnage
 Location and Function
Methods of Classification
The classification based on traffic volume or tonnage
have been arbitrarily fixed by different agencies and
there may not be a common agreement regarding the
limits for each of classification group. Based on the
traffic volume, the roads are classified as heavy,
mediumandlighttrafficroads.
Methods of Classification
These terms are relative and so the limits under each
class should be clearly defined and expressed as
vehiclesperdayetc.
Likewise the classification based on load or tonnage is
also relative and the roads may be classified as class-I,
II etc. or Class A, B etc. and the limits may be
expressedastonnesperday.
Methods of Classification
The classification based on location and function
shouldthereforebeamoreacceptableclassificationfor
a country as they may be defined clearly. The Nagpur
Road Plan classified the roads in India based on
location & function into following five categories and
describedasfollows:
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FAQs on PPT: Classification of Roads - Transportation Engineering - Civil Engineering (CE)

1. What is the purpose of classification of roads in civil engineering?
Ans. The purpose of classification of roads in civil engineering is to categorize different types of roads based on their design, capacity, and function. This classification helps in determining the appropriate standards and specifications for construction and maintenance activities.
2. How are roads classified in civil engineering?
Ans. Roads are typically classified based on their function, traffic volume, and design features. Common classification systems include primary roads, secondary roads, and local roads. They can also be further categorized into arterial roads, collector roads, and residential streets based on their capacity and purpose.
3. What are the different types of road classifications based on function?
Ans. Road classifications based on function include highways, expressways, and arterials. Highways are major roads that connect cities or states, while expressways are high-speed roads with limited access. Arterials are major roads within urban areas that facilitate traffic movement.
4. How does traffic volume affect road classification?
Ans. Traffic volume plays a crucial role in road classification. Roads with high traffic volumes, such as highways and expressways, are designed to accommodate heavy vehicles and provide efficient transportation between major destinations. On the other hand, roads with lower traffic volumes, such as local streets, focus more on providing access to residential areas.
5. What factors are considered in the design of classified roads?
Ans. The design of classified roads takes into account factors such as traffic volume, speed limits, road alignment, lane width, pavement materials, and safety features. These factors are carefully considered to ensure the road's durability, efficiency, and safety for users.
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