Question

Which one of the following is taken into consideration for computing traffic capacity per lane of the highway ?

• A. Passenger cars and light vehicles
• B. Trucks and buses
• C. Two-wheelers
• D. Equivalent of passenger cars

Answer 1

The correct option is D Equivalent of passenger cars

Passenger Car Equivalent (PCE) or Passenger Car Unit (PCU) is a metric used in Transportation Engineering, to assess traffic-flow rate on a highway. A Passenger Car Equivalent is essentially the impact that a mode of transport has on traffic variables(such as headway, speed, density) compared to a single car. For example, typical values of PCE (orPCU) are:
$\bullet$ private car (including taxis or pick-up) 1
$\bullet$ motorcycle 0.5
$\bullet$ bicycle 0.2
$\bullet$ bus, tractor, truck 3.5
Highway capacity is measured in PCE/hour daily