4.8.3Additional end-of-queue protection#
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Where traffic control is in use, one or a combination of end-of-queue risk control measures in Chapter 1, Clause 2 of the Guideline – Traffic Management at Works on Roads must be implemented to manage the risk of rear end crashes where either of the following apply:
- the speed limit is 80 km/h or higher (prior to any reductions for the roadworks) and an annual average daily traffic (total vehicle count in both directions of travel per day) of over 500 vehicles per day, or
- where sight-distance to the end of the traffic queue is restricted (less than the value from Table 2.3).
End-of-queue risk control measures must also be implemented when nominated in Clause 5.8 of Annexure MRTS02.1 Provision for Traffic.
In addition to the requirements above, end-of-queue risk control measures should be considered and implemented to address end of queue risks at any site. Some considerations include:
- Where traffic slows significantly, or queues are formed due to congestion or roadworks.
- Where environmental or geometric issues exist that limit visibility or impact normal stopping distances such as poor weather conditions (for example rain or fog), poor road conditions, a downhill approach, vertical curves, night works (driver fatigue or visibility) or a slippery road surface are present.
- Where significant volumes of heavy vehicles are present or expected.
