Page 3603 - Week 09 - Thursday, 23 August 2018
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(3) Why does the up ramp to Dairy Flat Road heading north (Monaro Highway) cause drivers to turn their backs on approaching traffic on the highway thereby not being able to be aware of this traffic and causing the Monaro traffic to have to move into the right hand lane to avoid possible issues.
(4) Why were the traffic lights installed for the Alexander Maconochie Centre on the Monaro Highway, which is a major arterial road, often causing traffic in peak hours to bank up back to Hindmarsh Drive so one or two vehicles can leave the facility.
(5) Could the vehicle entrance be moved around to the lights at Sheppard Street/Lanyon Drive.
(6) Why does the Lanyon Drive/Monaro Highway intersection not have a flyover for the northbound traffic and (a) has this been considered and (b) when will it occur.
Ms Fitzharris: The answer to the member’s question is as follows:
(1) The third lane southbound on the Monaro Highway is provided before, and for a short distance after, the Sheppard Street signalised intersection. The third lane provides capacity for queuing and allows the traffic signals to clear more vehicles through the intersection each cycle and so makes the signals more efficient. Road capacity is constrained by intersections and so the additional lane is not necessary after the signals and so the three lanes are merged into two lanes a short distance after the intersection.
(2) The intersection of Monaro Highway with Canberra Avenue does not have all movements provided. However, there are alternative access routes to join the Monaro Highway via Ipswich Street and Hindmarsh Drive. Any upgrade to this intersection to include an on ramp connecting Canberra Avenue westbound to the northbound Monaro Highway would be predicated on traffic volumes and road network performance.
(3) The northbound on-ramp from Dairy Road on to the Monaro Highway is a standard intersection treatment and as such is a road layout familiar to motorist. Drivers should be using their mirrors to look behind and should give way to traffic on the Monaro Highway. Traffic on the Monaro Highway is not required to move to the right to allow traffic to enter the highway.
(4) Traffic lights were installed at David Warren Road to provide safe access to and from the centre. The lights are activated when vehicles need to exit the centre otherwise the lights remain green on the Monaro Highway.
(5) This change would need to be investigated for feasibility and cost/benefit implications.
(6) Grade separation of roads, such as the construction of a flyover, is predicated on traffic volumes and road network performance. Currently this section of the Monaro Highway is performing acceptably. However, the intersection will be investigated as part of the Monaro Highway Improvements Program.
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