Question 1

Which of the following is the stopping sight distance (most nearly) for a speed of 70 miles per hour (mph) on a flat grade roadway?

Accepted Answer

A) 260 feet 
B) 470 feet 
C) 730 feet 
D) 820 feet 
A) 260 feet 
B) 470 feet 
C) 730 feet 
D) 820 feet C

Question 2

Which of the following best describes the American Association of State Highway Transportation Officials recommendation regarding where to measure the radius used when designing superelevated sections of horizontal curves?

Accepted Answer

A) Outermost edge of outermost travel lane 
B) Outside edge of innermost travel lane 
C) Inside edge of inner most travel lane 
D) None of the above 
A) Outermost edge of outermost travel lane 
B) Outside edge of innermost travel lane 
C) Inside edge of inner most travel lane 
D) None of the above C

Question 3

The decision sight distance for a rural roadway with a speed of 50 miles per hour (mph) and a maneuver A is which of the following?

Accepted Answer

A) 230.2 feet 
B) 460.5 feet 
C) 908.8 feet 
D) Not enough information provided 
A) 230.2 feet 
B) 460.5 feet 
C) 908.8 feet 
D) Not enough information provided B

Question 4

What is the length of the arc for the given curve?
Radius 245.00
Tangent in N 20°30' E
Tangent out N 30°30' E

Accepted Answer

A) 9.07 feet 
B) 13.61 feet 
C) 41.24 feet 
D) 42.76 feet 
A) 9.07 feet 
B) 13.61 feet 
C) 41.24 feet 
D) 42.76 feet

Question 5

The approximate location of the low point of a 400 ft sag vertical curve is at which of the following stations? Assume g1 = -3.2%, g2 = 1.8%, PVI is located at Sta 100+00.

Accepted Answer

A) Sta 95+44 
B) Sta 98+00 
C) Sta 100+56 
D) None of the above 
A) Sta 95+44 
B) Sta 98+00 
C) Sta 100+56 
D) None of the above

Question 6

What is the rate of superelevation required for a horizontal curve on a 45 mile per hour (mph) two-lane rural highway with a minimum safe radius of 710.5 feet? Assume the coefficient of side friction is 0.15.

Accepted Answer

A) 4% 
B) 6% 
C) 9% 
D) Not enough information provided 
A) 4% 
B) 6% 
C) 9% 
D) Not enough information provided

Question 7

In which of the following situations might a compound circular curve be used in roadway design?

Accepted Answer

A) Highway traversing relatively flat expanse 
B) Low-speed roadway in hilly terrain 
C) Downtown arterial roadway 
D) All of the above 
A) Highway traversing relatively flat expanse 
B) Low-speed roadway in hilly terrain 
C) Downtown arterial roadway 
D) All of the above

Question 8

Which of the following is the stopping site distance for a roadway with a speed of 35 miles per hour and a downgrade of 9%?

Accepted Answer

A) 222 feet 
B) 271 feet 
C) 287 feet 
D) 354 feet 
A) 222 feet 
B) 271 feet 
C) 287 feet 
D) 354 feet

Question 9

Which of the following limits the rate of superelevation that can be attained in urban settings?

Accepted Answer

A) Driveways 
B) Right-of-way allowances 
C) Intersection spacing 
D) All of the above 
A) Driveways 
B) Right-of-way allowances 
C) Intersection spacing 
D) All of the above

Question 10

A roadway improvement project to improve safety is cost effective when which of the following factors are met (fill in the blanks)?
Benefits: Reduced crash frequency, Reduced ___________, Reduced liability costs
Costs: Design and installation cost, __________________ cost, Cost of more frequent, less severe crashes
Benefits>Costs

Accepted Answer

A) Crash severity, liability 
B) Crash severity, maintenance and operation 
C) Maintenance, liability 
D) All of the above 
A) Crash severity, liability 
B) Crash severity, maintenance and operation 
C) Maintenance, liability 
D) All of the above

Question 11

Which of the following reasons provides an explanation of why reverse circular curves are seldom used in roadway design?

Accepted Answer

A) Design calculations are complex and contain too many variables to model 
B) The instantaneous change in direction would result in unsafe driving conditions and traveler discomfort 
C) Methods of construction for reverse circular curves are cost prohibitive 
D) All of the above 
A) Design calculations are complex and contain too many variables to model 
B) The instantaneous change in direction would result in unsafe driving conditions and traveler discomfort 
C) Methods of construction for reverse circular curves are cost prohibitive 
D) All of the above

Question 12

What is the minimum spiral curve length transition for a new roadway with a radius of 1000 feet and a design speed of 45 miles per hour (mph), assuming a 2 ft/sec3 lateral acceleration increase rate?

Accepted Answer

A) 143.5 feet 
B) 158.6 feet 
C) 229.2 feet 
D) 237.6 feet 
A) 143.5 feet 
B) 158.6 feet 
C) 229.2 feet 
D) 237.6 feet

Question 13

At what distance from the centerline of the inside of a 2-lane highway horizontal curve can a house can be placed without impacting the required stopping distance of 74.1 meters (m) if the radius of the curve is 200 meters and the speed limit is 50 kilometers/hour (km/h)?

Accepted Answer

A) 1.75 m 
B) 3.43 m 
C) 175 m 
D) 343 m 
A) 1.75 m 
B) 3.43 m 
C) 175 m 
D) 343 m

Question 14

Traffic speed is affected or affects by which of the following factors?

Accepted Answer

A) Road cross-section width 
B) Horizontal and vertical curvature 
C) Sign placement 
D) All of the above 
A) Road cross-section width 
B) Horizontal and vertical curvature 
C) Sign placement 
D) All of the above

Question 15

Which of the following provides the best comparison of intersection site distance (ISD) to stopping sight distance (SSD)?

Accepted Answer

A) ISD is often greater than SSD 
B) ISD is often less than SSD 
C) ISD and SSD are generally the same 
D) None of the above 
A) ISD is often greater than SSD 
B) ISD is often less than SSD 
C) ISD and SSD are generally the same 
D) None of the above

Question 16

What is the radius of a 10.6° roadway curve (in feet)?

Accepted Answer

A) 168.70 feet 
B) 270.26 feet 
C) 540.53 feet 
D) Not enough information provided 
A) 168.70 feet 
B) 270.26 feet 
C) 540.53 feet 
D) Not enough information provided

Question 17

Which of the following situations would superelevation not be desirable?

Accepted Answer

A) To avoid a roadside obstacle 
B) To limit the impacts on an existing drainage situation 
C) When the roadway will be used by bicycles or pedestrians 
D) All of the above 
A) To avoid a roadside obstacle 
B) To limit the impacts on an existing drainage situation 
C) When the roadway will be used by bicycles or pedestrians 
D) All of the above

Question 18

The change in vertical curve direction effects passenger comfort more on sag curves than crest vertical curves because of which of the following reasons?

Accepted Answer

A) Gravitational and centripetal forces are equal 
B) Gravitational and centripetal forces are in opposite directions 
C) Gravitational and centripetal forces are greater than frictional forces 
D) None of the above 
A) Gravitational and centripetal forces are equal 
B) Gravitational and centripetal forces are in opposite directions 
C) Gravitational and centripetal forces are greater than frictional forces 
D) None of the above

Question 19

Which of the following is not a type of horizontal roadway curve?

Accepted Answer

A) Simple 
B) Compound 
C) Reverse 
D) Superelevation 
A) Simple 
B) Compound 
C) Reverse 
D) Superelevation

Question 20

Which of the following impacts would the presence of ice and snow conditions on a superelevated roadway have that influence the maximum useable rate of superelevation?

Accepted Answer

A) Cause traffic backups due to slow moving traffic 
B) Cause vehicles to spin 
C) Cause vehicles to slide towards the center of the curve 
D) None of the above 
A) Cause traffic backups due to slow moving traffic 
B) Cause vehicles to spin 
C) Cause vehicles to slide towards the center of the curve 
D) None of the above

Which of the following is the stopping sight distance (most nearly) for a speed of 70 miles per hour (mph) on a flat grade roadway?

Which of the following best describes the American Association of State Highway Transportation Officials recommendation regarding where to measure the radius used when designing superelevated sections of horizontal curves?

The decision sight distance for a rural roadway with a speed of 50 miles per hour (mph) and a maneuver A is which of the following?

What is the length of the arc for the given curve? Radius 245.00 Tangent in N 20°30' E Tangent out N 30°30' E

The approximate location of the low point of a 400 ft sag vertical curve is at which of the following stations? Assume g₁ = -3.2%, g₂ = 1.8%, PVI is located at Sta 100+00.

What is the rate of superelevation required for a horizontal curve on a 45 mile per hour (mph) two-lane rural highway with a minimum safe radius of 710.5 feet? Assume the coefficient of side friction is 0.15.

In which of the following situations might a compound circular curve be used in roadway design?

Which of the following is the stopping site distance for a roadway with a speed of 35 miles per hour and a downgrade of 9%?

Which of the following limits the rate of superelevation that can be attained in urban settings?

Which of the following reasons provides an explanation of why reverse circular curves are seldom used in roadway design?

What is the minimum spiral curve length transition for a new roadway with a radius of 1000 feet and a design speed of 45 miles per hour (mph), assuming a 2 ft/sec3 lateral acceleration increase rate?

At what distance from the centerline of the inside of a 2-lane highway horizontal curve can a house can be placed without impacting the required stopping distance of 74.1 meters (m) if the radius of the curve is 200 meters and the speed limit is 50 kilometers/hour (km/h)?

Traffic speed is affected or affects by which of the following factors?

Which of the following provides the best comparison of intersection site distance (ISD) to stopping sight distance (SSD)?

What is the radius of a 10.6° roadway curve (in feet)?

Which of the following situations would superelevation not be desirable?

The change in vertical curve direction effects passenger comfort more on sag curves than crest vertical curves because of which of the following reasons?

Which of the following is not a type of horizontal roadway curve?

Which of the following impacts would the presence of ice and snow conditions on a superelevated roadway have that influence the maximum useable rate of superelevation?

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Exam 19: Transportation

Which of the following is the stopping sight distance (most nearly) for a speed of 70 miles per hour (mph) on a flat grade roadway?

Which of the following best describes the American Association of State Highway Transportation Officials recommendation regarding where to measure the radius used when designing superelevated sections of horizontal curves?

The decision sight distance for a rural roadway with a speed of 50 miles per hour (mph) and a maneuver A is which of the following?

What is the length of the arc for the given curve? Radius 245.00 Tangent in N 20°30' E Tangent out N 30°30' E

The approximate location of the low point of a 400 ft sag vertical curve is at which of the following stations? Assume g1 = -3.2%, g2 = 1.8%, PVI is located at Sta 100+00.

What is the rate of superelevation required for a horizontal curve on a 45 mile per hour (mph) two-lane rural highway with a minimum safe radius of 710.5 feet? Assume the coefficient of side friction is 0.15.

In which of the following situations might a compound circular curve be used in roadway design?

Which of the following is the stopping site distance for a roadway with a speed of 35 miles per hour and a downgrade of 9%?

Which of the following limits the rate of superelevation that can be attained in urban settings?

Which of the following reasons provides an explanation of why reverse circular curves are seldom used in roadway design?

What is the minimum spiral curve length transition for a new roadway with a radius of 1000 feet and a design speed of 45 miles per hour (mph), assuming a 2 ft/sec3 lateral acceleration increase rate?

At what distance from the centerline of the inside of a 2-lane highway horizontal curve can a house can be placed without impacting the required stopping distance of 74.1 meters (m) if the radius of the curve is 200 meters and the speed limit is 50 kilometers/hour (km/h)?

Traffic speed is affected or affects by which of the following factors?

Which of the following provides the best comparison of intersection site distance (ISD) to stopping sight distance (SSD)?

What is the radius of a 10.6° roadway curve (in feet)?

Which of the following situations would superelevation not be desirable?

The change in vertical curve direction effects passenger comfort more on sag curves than crest vertical curves because of which of the following reasons?

Which of the following is not a type of horizontal roadway curve?

Which of the following impacts would the presence of ice and snow conditions on a superelevated roadway have that influence the maximum useable rate of superelevation?

Earth Retention

Earth Structures

Earthworks

Estimation

Foundations

Hydraulics Closed

Hydraulics Open

Hydrology

Material Mechanics

Material QC

Member Design

Scheduling

Soil and Materials

Soil Mechanics

Struct Loading

Struct Materials

Struct Analysis

Subsurface

Waste Water

Water Treatment

Filters

The approximate location of the low point of a 400 ft sag vertical curve is at which of the following stations? Assume g₁ = -3.2%, g₂ = 1.8%, PVI is located at Sta 100+00.