SUPERSEDED NEGOTIATED - OPW25 0042 - REFERENCE DOCUMENT (As Published)

            The results of the SIDRA analysis for the 2025 Base + Earthworks scenarios (both weekdays and weekends)
            are summarised in Table 3-3. Detailed SIDRA output data is also included in Attachment C – SIDRA Outputs.

            Table 3-3: Summary of Sidra Outputs (Grant Street / Banksia Avenue Roundabout)

              Scenario          DOS          Average Delay                            LOS                  95th Percentile Critical Queue
                                                                                                           (m)
                                             Overall      Worst Movement              Overall   Worst      Banksia    Grant      Banksia
                                                                                                Movement   Ave (S)    Street     Ave (N)
                                                                                                                      (E)
              Weekday - AM Peak Hour

              2022 Survey          5%          6 sec       9 sec (UT Banksia Ave N)      A         A        <1m         1m         2m
              2025 Base            5%          6 sec       9 sec (UT Banksia Ave N)      A         A        <1m         2m         2m
              2025 Base +          5%          7 sec       9 sec (UT Banksia Ave N)      A         A        <1m         2m         2m
              Earthworks
              Weekday - PM Peak Hour

              2022 Survey          4%          7 sec         9 sec (UT Grant St N)       A         A        <1m         2m         1m
              2025 Base            4%          7 sec         9 sec (UT Grant St N)       A         A        <1m         2m         2m
              2025 Base +          5%          7 sec         9 sec (UT Grant St N)       A         A        <1m         2m         2m
              Earthworks
              Weekend – PM Peak
              2022 Survey          4%          7 sec       9 sec (UT Banksia Ave N)      A         A        <1m         2m         2m
              2025 Base            5%          7 sec       9 sec (UT Banksia Ave N)      A         A        <1m         2m         2m
              2025 Base +          5%          7 sec       9 sec (UT Banksia Ave N)      A         A        <1m         2m         2m
              Earthworks
            RT – Right Turn Movement, Th – Through Movement, LT – Left Turn Movement, UT – U Turn Movement; N – North, S – South, E –
            East, W – West


            The analysis indicates that the roundabout is expected to operate at suitable levels at the 2025 assessment
            year, with Earthworks traffic included, with a worst-case DOS 5% (less than 85%, practical capacity limit of
            roundabout) and an overall LOS A. The addition of the earthworks traffic has negligible impact to key
            operational metrics, with no significant change to average intersection delay and queuing.

            Based on this assessment, the Earthworks traffic is considered to have no adverse impact on the operations
            of this roundabout.




            Site: 3-7 Serenity Close, Noosa – Proposed Resort Complex
            Reference: 22BRT0122

Document Set ID: 24005503
                  23806879
Version: 2,
         0, Version Date: 07/08/2025
                          01/01/1900