ATSSA Traffic Control Supervisor Module
7 Certification 2026
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.
Traffic controls, urban features, and traffic generators - -What Factors effect the design
of a TTC plan
Long-term stationary
Intermediate-term stationary
short-term stationary
short-duration
mobile - -What are the MUTCD categories of Work Duration?
Occupies location more than 3 days
larger channelizing devices and post mounted signs
conflicting roadway markings removed and replaced with temporary markings
cover or remove conflicting signage - -Long-term stationary (MUTCD work duration
category)
More than 1 day, less than 3 days
Nightime work of more than 1 hour - -Intermediate-stationary (MUTCD work duration
category)
Daytime work 1 to 12 hours
cones and portable signs - -Short-term stationary (MUTCD work duration category)
work that moves intermittently or continuously
May use truck-mounted impact attenuators - -Mobile (MUTCD work duration category)
Constructability - -Nature of the work
ATSSA TRAFFIC