ATSSA TRAFFIC CONTROL SUPERVISOR "THE TYPICAL
PROJECT" MODULE 7 EXAM QUESTIONS WITH
ACCURATE ANSWERS
Planning What stage:
Gather available data
Prior to occupying TTC zone
Consider the needs of all users
Coordinate between adjacent or overlapping projects
Design What stage:
Select best traffic control alternative
based on: safety, mobility, cost, constructability
Traffic Factors, characteristics, and speed. What Factors effect the design of a TTC
plan Traffic controls, urban features, and traffic generators
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Long-term stationary What are the MUTCD categories of Work Duration?
Intermediate-term
stationary short-term
stationary
short-duration
mobile
Occupies location more than 3 days Long-term stationary (MUTCD work duration
category) larger channelizing devices and post mounted signs
conflicting roadway markings removed and replaced with
temporary markings
cover or remove conflicting signage
More than 1 day, less than 3 days Intermediate-stationary (MUTCD work duration
category) Nightime work of more than 1 hour
Daytime work 1 to 12 hours Short-term stationary (MUTCD work duration
category) cones and portable signs
work that moves intermittently or continuously Mobile (MUTCD work duration
category) May use truck-mounted impact attenuators
Constructability Nature of the work
access requirements
drainage issues, drainage during
construction construction equipment
size of work
space Access to
work area
room to maneuver equipment
Outside the shoulder MUTCD "Locations of work"
On the shoulder with no
encroachment on the shoulder with
minor encroachment within the
median
within the traveled way
Phasing Refers to TTC projects being broken into multiple steps
Could be dangerous due to devices and workers on the move
coordination and timing are key
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