Definition of speed | Traffic volume and Traffic rate of flow

Speed

Distance covered by vehicle in unit time is known as speed.

Its units are miles/hour or km/hr.

Traffic Volume (q)

The actual number of vehicles observed to pass a given point on the highway in a given time is known as traffic volume.

1. Its units are vehicles/unit time.
2. We design the width of the road on the basis of peak traffic volume.

Peak Hour Volume

1. Functional classification of highways.
2. Design of the geometric characteristics of a highway.
3. Number of lanes, signals at intersection, or channelization.
4. Capacity analysis.
5. Development of programs related to traffic operations.
6. For example one-way. Street systems or traffic routing.
7. Development of parking regulations.

Rate of flow of traffic

If 200 vehicles passes in 10 minutes then rate of flow = 200 * 6 = 1200 vehicles/hour.

Traffic volume is different from rate of flow.

For example

So from the above example we can see that traffic volume is different from rate of flow of traffic.