5.9Performing the traffic control function#

5.9.1Always be alert to changing conditions#

When working on a site, the traffic controller should be aware that site conditions may change during the course of the day:

• over time, the angle of the sun may shade the traffic control station, making the traffic controller more difficult to see, or making signs more difficult to read – leading to confused road users
• signs may blow over in windy conditions, be vandalised, or become dirty and less readable
• peak hour traffic can cause longer queues, and
• changes in the road use mix (such as more heavy vehicles and pedestrians) at certain times.

Traffic controllers should inform their supervisors and other traffic controllers of any changed site conditions so that adjustments and remedy actions can be taken where needed.

5.9.2Traffic signals, STOP and GIVE WAY signs#

A traffic controller must not direct traffic through a STOP or GIVE WAY sign, without covering the sign first, nor can traffic be directed through operating traffic signals without having the relevant road authority switch them to flashing yellow or off. Worksite supervisors must first gain the written approval of the relevant authority to cover a permanent fixture such as a STOP or GIVE WAY sign.