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Question
Match List- I (Speed) with List- II (Application) and select the correct answer using the code given below the lists:
List-I List-II
A. Space mean speed 1. Road conditions studies
B. Journey speed 2. Regulatory measures
C. Running speed 3. Traffic flow studies
D. Spot speed 4. Delay studies
 
Codes:
A    B    C    D
A.
3    2    1    4
B.
1    4    3    2
C.
3    4    1    2
D.
1    2    3    4
Answer ( Option C)

3    4    1    2

Solution

Space mean speed is average speed of vehicles in a certain road length at any time, so it helps in traffic flow studies.
Running speed is the average speed maintained by a vehicle over a particular stretch of road. It helps in detecting road condition, congestion.
Spot speed study is useful in planning traffic control and in traffic regulations. 
Journey speed helps in studying delay.

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