1. What is the desirable lane width for facilities?
a) 12 ft
b) 13 ft
c) 10 ft
d) 5 ft
Explanation: The desirable lane width for facilities is 12 ft. 10 ft is the minimum lane width for all applica-tions where area is restricted. This is mandatory for easy flow of vehicles moving in and out of the facility.
2. What are the conditions under which vehicles must take turns?
a) Low speed turns and high speed turns
b) Superelevation
c) Wheel load
d) Centrifugal force
Explanation: The conditions under which vehicles must take turns are low speed turns (less than or equal to 16 kmph) and high speed turns (more than or equal to 16kmph).
3. Low speed turns are limited by _______
a) Characteristics of vehicle
b) Dynamics of side friction
c) Wheel load
d) Type of road
Explanation: Low-speed turns are limited by characteristics of the vehicle because the minimum radius al-lowed by the vehicle’s steering mechanism can be supported at such speeds.
4. High speed turns are limited by ______________
a) Characteristics of vehicle
b) Dynamics of side friction
c) Wheel load
d) Type of road
Explanation: High speed turns are limited by dynamics of side friction between road and tires. They are also limited by the superelevation of road.
5. The characteristic WB-40 indicates which design vehicle?
a) Intermediate semi-trailer ( wheelbase = 40 ft)
b) Intermediate semi-trailer ( wheelbase = 50 ft)
c) Intermediate semi-trailer ( wheelbase = 62 ft)
d) Inter bus city (wheelbase = 40 ft)
Explanation: The characteristic WB-40 indicates Intermediate semi-trailer ( wheelbase = 40 ft) design vehi-cle. This characteristic is recommended by AASHTO. It has 20 such design vehicles which are useful for de-sign of roadways.
6. Which technique can be used to judge pedestrian behaviour?
a) Traffic survey
b) Interview study
c) Calibration study
d) Observation study
Explanation: The technique that can be used to judge pedestrian behaviour is Interview study. Interview studies can be done to judge walking pattern of the pedestrian on the street. Questionnaire is done in this study.
7. Which main trait is obtained from Pedestrian study?
a) Crosswalks at signalized and un-signalized intersection
b) Crosswalks at flyovers
c) Pedestrian’s origin and destination
d) Pedestrian’s traffic
Explanation: The main trait that is obtained from Pedestrian study is their mode in using crosswalks at sig-nalized and un-signalized intersection. Pedestrian study helps understand the pattern of the pedestrian and determines whether retiming is required or not in a signalised intersection.
8. Warning signs dealing with pedestrians and cyclists have which colour background?
a) Red
b) Lime Green
c) Yellow
d) Black
Explanation: Warning signs dealing with pedestrians and cyclists have lime green colour background. Most warning signs have yellow background, black letters or symbols and are diamond shaped.
9. What are the two approaches considered when minimum pedestrian condition is not met?
a) Pedestrian actuator and retiming of signal
b) Pedestrian actuator and redesigning
c) Retiming of signal and traffic controller
d) Traffic controller and crossway broadened
Explanation: Two approaches considered when minimum pedestrian condition is not met are Pedestrian actuator and retiming of signal. But when a pedestrian actuator is provided, a pedestrian signal must be used.
10. What is the main demerit of retiming the traffic signal for pedestrians and cyclists?
a) Delay of vehicles
b) Delay of pedestrians and cyclist
c) Accidents
d) Disruption of traffic
Explanation: The main demerit of retiming the traffic signal for pedestrians and cyclists is the delay of vehicles. Retiming generally increases the red light time for the vehicles and this causes increase in time to get to their destination.