1. In which class of two-lane highway does motorists not travel at high speeds?
a) Class I
b) Class II
c) Class III
d) Class IV
Explanation: In class II of two-lane highway motorists do not travel at high speeds. This type of roads are generally access routes to class I facilities. They are not primary arterials.
2. Which class of two-lane highway serves as scenic or recreational routes?
a) Class I
b) Class II
c) Class III
d) Class IV
Explanation: Class II of two-lane highway serves as scenic or recreational routes. In these types of road, motorists do not travel at high speeds relatively. Speed is not a primary consideration in this roadway.
3. Class II of two-lane highway is a short trip.
a) True
b) False
Explanation: The statement, “Class II of two lane highway is a short trip” is a true statement. In these types of roadway, sightseeing plays an important role. They are the beginning or end portion of a longer trip.
4. In which terms is LOS defined in class I highways?
a) Only percentage time spent following
b) Only average travel time
c) Percentage time spent following and average travel time
d) PCU
Explanation: LOS is defined in terms of percentage time spent following and average travel time in class I highways. In class I facilities the speed is relatively higher.
5. In which terms is LOS defined in class II highways?
a) Only percentage time spent following
b) Only average travel time
c) Percentage time spent following and average travel time
d) PCU
Explanation: LOS is defined in terms of percentage time spent following in class II highways. Average travel time is not considered. In class II facilities the speed is relatively higher. Mobility is critical in class II highways.
6. Which of the following is not a correction or adjustment required for multi-lane highways?
a) Lane width
b) Lateral clearance
c) Median time
d) Length of highway
Explanation: Length of highway adjustment is not a correction or adjustment that is required for multi-lane highways. The lane width, lateral clearance, median time, and excess points adjustments are required for multi-lane highways.
7. What is the free-flow speed (FFS) of a multilane highway?
a) FFS = BFFS-flw-flc-fm-fa
b) FFS = BFFS+flw-flc-fm-fa
c) FFS = BFFS-flw-flc-fm+fa
d) FFS = BFFS-flw+flc-fm-fa
Explanation: The free-flow speed (FFS) of a multilane highway is FFS = BFFS-flw-flc-fm-fa. Here, FFS=free flow speed, BFFS=base FFS, flw=adjustment for lane width, flc= adjustment for lateral clearance, fm=adjustment for median type, and fa=adjustment for excess point.
8. How much does the FFS decrease when 10 foot lanes are used?
a) 6.6 mph
b) 6 mph
c) 10 mph
d) 2 mph
Explanation: FFS decrease by 6.6 mph when 10 foot lanes are used. This is referred from exhibit 21-4 (adjustment of lane width) of the Highway Capacity Manual.
9. Calculate flc (lateral clearance) for a 4 lane highway with milepost markers which are located 3 feet to the right of the travel lane?
a) 9
b) 11
c) 5
d) 6
Explanation: Lateral clearance, flc = LCright + LCleft
= 6 + 3 = 9
The flc (lateral clearance) for a 4 lane highway with milepost markers which are located 3 feet to the right of the travel lane is 9 feet.
10. Which of the following is the factor that affects the flow on multilane highways?
a) Uncontrolled excess form roadside
b) Right turns
c) Controlled excess form roadside
d) Traffic signals
Explanation: Uncontrolled excess form roadside is one of the factors affecting the flow on multilane highways. The other factor is the left turns taken by the motorists.