SARA RFI - Traffic Engineering Report

Issue – Serenity Close Cul-de-sac Upgrades
Page 18 of TTM’s Traffic Engineering Report (22135916) dated 07 October 2022 details
design modifications of the existing cul-de-sac at the end of Serenity Close. The submitted
documentation does not contain sufficient information for Council to assess the proposed
Serenity Close cul-de-sac upgrade.
Information Required
23.   Provide additional detail demonstrating the extent of the Serenity Close cul-de-sac
      upgrade. The detail must be prepared by a suitably qualified person (RPEQ – Registered
      Professional Engineer of Queensland) and include, but not be limited to:
      a. Demonstrate the extent of cul-de-sac roadworks, including:
              i.   demonstrate the proposed services entrance generally complies with Noosa
                   Council’s standard drawing RS-051;
              ii. provide a longitudinal section extending from the centreline of the road
                  formation about the Serenity Close cul-de-sac roundabout to the “Loading”
                  area;
              iii. Demonstrate the expected service vehicles (SRV, MRV, LRV BCC and
                   VOLVO B12 BLE) will not scrape or bottom out while entering, manoeuvring
                   on site and exiting the proposed servicing/loading entrance.
      b. Demonstrate how the additional stormwater runoff generated by the downslope
         slope of the entrance will be controlled, treated and released.
      c. Provide comment on the amount of additional catchment volume during up to, and
         including, a 1% AEP event and if the downstream drainage system has sufficient
         capacity to handle this increase.


Issue – Practicality and Functionality of the Coach
Engineering is concerned the use of the coach is impracticable. The functionality of the coach
manoeuvring is impracticable and is likely to adversely affect the existing road network
conditions.
Information Required
24.   Provide additional detail demonstrating the coach is capable of manoeuvring through
      the existing road network without adversely affecting the existing traffic conditions. The
      detail must be prepared by a suitably qualified person (RPEQ – Registered Professional
      Engineer of Queensland) and follow the below route:
      a. Enter the Grant Street/Noosa Drive/Sunshine Beach Road roundabout via the west
         (Noosa Drive) and south (Sunshine Beach Road);
      b. Grant Street via the Grant Street/Noosa Drive/Sunshine Beach Road roundabout;
      c. Banksia Avenue (north) via the Grant Street/Banksia Avenue roundabout;
      d. Serenity Close via Banksia Avenue;
      e. Proposed Coach parking bay via Serenity Close;
      f.   Manoeuvre using the cul-de-sac;
      g. Banksia Avenue via Serenity Close;
      h. Grant Street via the Grant Street/Banksia Avenue roundabout;
      i.   Noosa Drive (west) via the Grant Street/Noosa Drive/Sunshine Beach Road
           roundabout; and




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