CME CME Transportation Engineering & Traffic Management 1 — Questions and Answers
Question 1: What is the primary design standard used for geometric design of US highways and streets?
- AASHTO Green Book (Correct answer)
- ITE Traffic Engineering Handbook
- MUTCD
- HCM Highway Capacity Manual
Correct answer: AASHTO Green Book
The AASHTO Green Book (A Policy on Geometric Design of Highways and Streets) is the primary US standard for highway geometric design.
Question 2: Which level of service (LOS) is generally considered the minimum acceptable for urban arterials in municipal design?
- LOS A
- LOS B
- LOS C (Correct answer)
- LOS D
Correct answer: LOS C
LOS C is typically the minimum acceptable standard for urban arterials, balancing capacity with driver comfort.
Question 3: What does the Manual on Uniform Traffic Control Devices (MUTCD) govern?
- Pavement structural design
- Signs, signals, and pavement markings on public roads (Correct answer)
- Bridge load ratings
- Environmental impact assessments
Correct answer: Signs, signals, and pavement markings on public roads
The MUTCD sets federal standards for all traffic control devices including signs, signals, and markings on US public roadways.
Question 4: In traffic engineering, what does a 'warrant analysis' determine?
- Road surface material selection
- Whether a traffic signal or other control is justified at an intersection (Correct answer)
- Bridge load capacity
- Drainage basin sizing
Correct answer: Whether a traffic signal or other control is justified at an intersection
A warrant analysis evaluates specific traffic volume and safety criteria to determine if installing a traffic control device is justified.
Question 5: Which US standard provides guidance on designing accessible pedestrian facilities, including curb ramps?
- PROWAG (Public Rights-of-Way Accessibility Guidelines) (Correct answer)
- AASHTO Roadside Design Guide
- NCHRP Report 659
- ITE Pedestrian Planning Manual
Correct answer: PROWAG (Public Rights-of-Way Accessibility Guidelines)
PROWAG provides accessibility guidelines specifically for pedestrian facilities in the public right-of-way, including curb ramps and crosswalks.
Question 6: What is the primary purpose of a traffic impact study (TIS) for a new development?
- Calculate utility connection fees
- Assess how the development's traffic will affect the surrounding road network (Correct answer)
- Determine building setback requirements
- Size stormwater detention facilities
Correct answer: Assess how the development's traffic will affect the surrounding road network
A traffic impact study evaluates the added vehicle trips from a proposed development and identifies necessary roadway improvements.
CME CME Transportation Engineering & Traffic Management 1
What is the primary design standard used for geometric design of US highways and streets?