Opus International Consultants (NSW) Pty Ltd - Transport for NSW ...

Mount Druitt Commuter Car ParkTraffic, Transportation and Access Impact AssessmentFigure 5–5: Mount Street / North Parade Phasing DiagramIII.Jirrang Close / North Parade IntersectionThe intersection modelled within SIDRA is shown in Figure 5-6. Table 9 illustrates that theexisting intersection layout does not suffer from any operational issues as every approachoperates with a LOS A.The Jirrang Close / North Parade intersection is predicted to operate at similar levels as itcurrently operates at with the inclusion of the Mt Druitt car park. As with the previousintersections, there is predicted to be less than minor increase in delays and queue lengthsleading to the northern Jirrang Close approach operating with a LOS B in the option modelcompared to the LOS A in the Do Min model. This is due to the additional 73 vehiclestravelling from the north and east u-turning at this roundabout, which in turn delay thevehicles on the northern approach. This demonstrates that the proposed Mt Druitt car parkwill have an acceptable impact on the Jirrang Close / North Parade roundabout, even withadditional vehicles u-turning to access the car park.The Jirrang Close / North Parade roundabout was calibrated against the observed vehiclequeues. The model showed the SIDRA queues approximately matched the survey queueswith the exception of the Jirrang Close north approach in the PM Peak which was lighter by 5vehicles.CCPP-0843-RW-7291-F.docx Page 28 of 46Status: Final CDR