The space mean speed for 2 vehicles traveling 60 miles at 30mph and 60mph.
What is 40 mph?
100
Station of the PVI for a 1200 ft. sag curve with a PVC located at station 5+00.
What is 11+00?
=Station of PVI + (1/2)length
=500 + 600 = 1100 = 11+00
100
(T/F) Nomographs are used to determine the structural number for rigid pavements.
What is false?
Nomographs are used to determine the depth of rigid pavements or the SN of flexible pavements
100
SSD for a 50 mph horizontal curve.
What is 360 ft?
100
The longest road in the US.
What is US 20?
200
The headway (in feet) between vehicles traveling 60 miles per hour with a 5 second gap and average vehicle length of 20 feet.
What is 460 feet/veh?
60 mph = 88 fps
Gap = 88fps x 5sec = 440 feet/veh
Headway = 440 + 20 = 460 feet/veh
200
Average queue length for a system with probabilistic arrivals and departures and one service lane with an arrival rate of 5 veh/min and a departure rate of 10 veh/min.
What is 0.5?
= (5/10)^2/(1-(5/10))
200
The structural number of a pavement with 3" of HMA wearing surface (material coefficient = 0.4), 5" of base (material coefficient = 0.2), 10" of crushed stone subbase (material coefficient = 0.1), and no issues with drainage.
What is 3.2?
=(a1)(d1)+(a2)(d2)(m2)+(a3)(d3)(m3)
=(.4)(3)+(.2)(5)(1)+(.1)(10)(1)
200
The occupancy rate if a presence detector is activated for 10 seconds every minute.
What is 1/6 = 16.7%
200
Alex Trebek's middle name.
What is Alex
300
Robot welding techniques are used during this phase of a civil engineering system
What is Construction?
300
The percent of AADT for the typical design hour (Design Hour Volume, DHV).
What is 10%-15%?
300
The ESAL of a dump truck with a single front axle (10,000lb) and a tandem rear axle (38,000lb) for flexible pavements.
What is 1.81 ESAL?
=(10,000/18,000)^4 + (38,000/33,200)^4
300
The three legs of a transportation system.
What are Viability, Components, and Putting the System in its place.
300
The mode of transportation that is the focal point of a 1994 Keanu Reeves and Sandra Bullock movie.
What is a bus?
(from the movie "Speed")
400
The LOS of a basic freeway segment with a free-flow speed = 65 mph, 4 lanes, 11 ft. lanes, a peak hour factor of 0.8, no heavy vehicles, and a density of 22 pc/mi/ln.
What is C?
400
The queue length (in vehicles) after 5 minutes for a deterministic queue with an arrival rate of 3 veh/min and a departure rate of 2 veh/min.
What is 5 vehicles?
= 3(5) - 2(5)
400
The ESAL of a dump truck with a single front axle (10,000lb) and a tandem rear axle (38,000lb) for rigid pavements.
What is What is 3.04 ESAL?
=(10,000/18,000)^4 + (38,000/29,000)^4
400
(T/F) Greenshields Model is used for deterministic traffic flows
What is true?
400
The standard size of car license plates in the United States, Canada, and Mexico.
What is 12" x 6" ?
500
Three factors used to calculate free-flow speed (FFS)
What are lane width (fLW), lateral clearance (fLC), and ramp density (TRD)?
500
Length of a horizontal curve with a PC located at 12+50.75, a radius of 1000ft, and a central angle of 40 degrees.
What is 698.13ft?
L = (pi/180)L(Δ) = (3.14/180)1000(40)
500
The soil bearing modulus for a subgrade with a CBR = 6 (don't forget units).
What is 9,000 lb/in^2 or 9 kips/in^2?
MR = CBR * 1500 (in lbs).
500
Length of the tangent if PC is at station 275+00 and PI is at station 285+00.
What is 1,000ft.
500
The form of transportation the Wright Brothers built and repaired prior to experimenting with flight?