Temporary Traffic Control - Traffic Engineering

Work Zones - Temporary Traffic Control

A Temporary Traffic Control (TTC) zone is an area of a roadway where road user conditions are changed because of a work zone or incident by the use of TTC devices, flaggers, law enforcement or other authorized personnel.
The type of operation planned, space requirements, time duration, and roadway characteristics for a specific TTC Zone will determine the appropriate procedures and preparation needed for the work zone.
Safety in the work zone is the primary consideration to be addressed in a TTC plan. A work zone may be as small as a single worker stopping alongside the roadway, to a mobile maintenance operation, to a flagger controlled lane closure, to a reduction of lanes on a multi-lane roadway and up to detoured traffic for a full roadway closure. The TTC plan must provide a safe work place and a safe route for all road users (including motorists, pedestrians and bicyclists).

Other questions?
Michelle Moser
michelle.moser@state.mn.us
651-234-7386

Jeff Morey
jeffrey.morey@state.mn.us
651-234-7058

Temporary Traffic Control (TTC) products and services

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