Question

Define, explain and illustrate graphically where appropriate the following:
a. Parallel Parking
b. Angular Parking
c. Parking Turnover
d. Ramp Metering
e. Congestion Pricing

Answer 1

A. PARALLEL PARKING:

In this method of parking, the vehicles are parked along/parallel to the length of the road. Here there is no backward movement involved while parking or unparking the vehicle.

This method of parking produces the least obstruction to the on going traffic as least road width is used. So this is the safest parking from accident perspective. However it uses maximum curb length, so least number vehicles can be parked for a given curb length.

B. ANGULAR PARKING:

ANGULAR parking is a type of parking where the vehicles are aligned at a fixed angle with respect to the road alignment. Angular parking can be done at 30, 45, 60 and 90 degrees.

In this case more vehicles can be parked compared to the parallel parking and also there is more vehicle maneuverability.

C. PARKING TURNOVER:

It is a ratio of number of vehicles parked in a particular duration to the number of parking bays available.

This can be expressed as number of vehicles per day per unit time.

D. RAMP METERING:

It is a method by which traffic seeking entry to a busy highway is controlled at the access points via traffic signals. This control aims ata maximizing the capacity of the highway and prevent the traffic flow breakdown.

E. CONGESTION PRICING:

Congestion pricing is a method which aims at decreasing both the congestion and air pollution by charging more for entering specific zones especially congested areas of a city.