2016-02-02 I&S Committee - Item 4 - Attachment 1 - Noosa Traffic Study

5.2.1 Year 2036 – Beckmans Rd and St Andrews Dr rat-running

Resolution of traffic issues along Beckmans Rd and rat-running along St Andrews Dr were
discussed in Section 3.2.1.

In summary, Beckmans Road will need duplication in the very near future, including upgrading
of intersections. The design and implementation of those works are a requirement of DTMR,
as outlined in the year 2000 de-maining agreement between Noosa Council and DTMR. A
possible configuration of the Beckmans Rd upgrading works to eliminate rat-running along St
Andrews Dr is depicted in Figure 7.



5.2.2 Year 2036 – Poinciana Ave / Moorindil St intersection

Under 2015 peak hour conditions, the Poinciana Ave / Moorindil St intersection is already
operating at absolute capacity levels in the AM peak, and westbound PM peak queuing along
Poinciana Ave appears to originate at this intersection and then extend back into the Tewantin
commercial area. These issues will be exacerbated as traffic growth continues to the year
2036.

Capacity analysis to identify upgrading requirements to accommodate project year 2036 peak
hour traffic demands indicates that upgrading incorporating the following features would be
required:

      Incorporation of two eastbound lanes through the roundabout on Poinciana Ave
      Provision of a separate left turn lane on the southbound Moorindil St approach
      Provision of a dedicated right turn lane on the westbound Poinciana Ave approach (with
       only a single westbound lane through the roundabout)

Upgrading of the southbound Moorindil St leg and the eastbound Poinciana Ave parts of the
roundabout overcome the AM peak hour issue of capacity constraint on the southbound
Moorindil St approach. Altering the lane markings on the westbound Poinciana Ave route
would assist with the existing PM peak slow moving westbound queue issue because it would
separate westbound and right turning traffic into separate lanes on the approach to the
roundabout, whereas they mostly only use a single lane at present (even though there are two
westbound lanes – as discussed in Section 3.2.2). This change to the westbound approach
would also bring consistency with other roundabouts along the Poinciana Avenue corridor, such
as the Werin St roundabout and the Butler St roundabout, both of which have a dedicated right
turn lane.

With those improvements, the intersection is predicted to operate with a degrees of saturation
of 0.83 and 0.58 in the 2036 AM and PM normal peaks, and 0.92 and 0.62 in the AM and PM
holiday peaks.


5.2.3 Year 2036 – Ernest St / Hilton Tce intersection

The Ernest St / Hilton Tce intersection is already operating close to absolute capacity levels
under existing conditions and this will be exacerbated as traffic growth to the year 2036
continues. Sufficient capacity at the end of the design horizon in the year 2036 would be

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