What is meant by temporary traffic control?

Temporary Traffic Control or TTC  is the use of temporary traffic control devices, flaggers, police officers, and other safety devices and features to guide traffic through an area of a highway where road user conditions are changed by road work or an incident.

The main functions of temporary traffic control are

  1. to provide road users-bicyclists, pedestrians, and vehicles-with safe conveyance and passage through roadway construction zones and
  2. to provide safety to workers and equipment.

Temporary Traffic control also includes the ability to communicate clear and concise information to road users when normal roadway activities are suspended. This is conveyed through the use of traffic control devices.

What are temporary traffic control devices?

Traffic control devices are used to inform, guide, and control traffic, including pedestrians, motor vehicle drivers, and bicyclists. These devices are usually placed adjacent to, over, or along highways, roads, traffic facilities, and other public areas that require traffic control.

Examples of temporary traffic control devices.

Traffic control devices frequently used include channelizing devices. Channelizing devices such as cones, barrels, or drums are also commonly used temporary traffic control devices that direct the flow of traffic safely through the work zone.

Other examples of temporary traffic control devices and channelizing devices

  • traffic signs,
  • barricades
  • bollards
  • traffic control systems
  • construction signs
  • lights
  • signal devices


Federal and State Approval of TTC Devices

It is important for the safety of drivers, pedestrians, and workers that temporary traffic control devices being used have been approved by federal and state authorities.

The Federal Highway Administration (FHWA) has approved the structural design of the Flex-Safe Folding Barricade / Safety Barrier, making it acceptable for use on the National Highway System.

Please remember that temporary traffic control devices should never be overused. Too many devices can confuse drivers and pedestrians.