Main Roads Western Australia | 7 10 years (assuming normal traffic growth). Other benefits the roundabout is providing include: • A slip lane for traffic heading south, therefore removing vehicles from the roundabout. • Trucks will find it easier and safer to enter the roundabout. • The roundabout has lower average delays than conventional four-way signalised intersections during peak hours. • Enhanced landscaping of the roundabout and surrounds have improved the appearance of this important entry into the City. • Improved facilities for cyclists and pedestrians, including new paths and a footbridge, to enable them to move more safely through the site. A special traffic signal phase has been designed for the very high volumes that occur when people travel back to Perth after long weekends. This phase will increase the flow of traffic from Robertson Drive to Australind Bypass. Closed Circuit TV cameras have been installed and are connected to Main Roads' Traffic Operations Centre in Perth, where the signals are monitored and adjusted when required.
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