5.15Additional traffic controllers#

During single lane shuttle control, an additional traffic controller is required when:

• the two traffic controllers cannot see each other (and two-way radios are not operational), or
• traffic is approaching too fast or a traffic queue gets so long that it approaches a blind corner or crest and vehicles may not have sufficient opportunity to stop in time.

In these circumstances, an additional traffic controller will signal approaching vehicles to slow down by using the SLOW sign facing the traffic, extending the free arm, and waving it up and down, but not extended above shoulder level.

Additional traffic controllers are required to:

• control traffic at a T-junction or 4-way intersection, and
• provide breaks for traffic controllers.