Appendix E- Traffic Impact Assessment · MCU23/0135

                                                                                       10 October 2023
                                                                           SLR Project No.: 620.V30926
Stockwell Development Group Pty Ltd                        SLR Ref No.: 620.30926-R01-v1.0 Noosa Civic
Noosa Civic Shopping Centre                                           Stage 2 Retail TIA 20231010.docx


Table 14 Trip Rates and Calculated Trips for Noosa Business Centre Surrounding
         Developments
                                                 Weekday PM Peak             Saturday Midday Peak
  Lot          Land Use          Units                        Trips                          Trips
                                            Trip Rates                    Trip Rates
                                                           Generated                      Generated
   2          Bulky Goods                      5.94            220           10.4             385
                 Retail                                      365                            607
                               Trips/ 100
              Commercial                      1.9             65             0.1             3
  3, 7                          m2 GFA
              Gymnasium                       3.6             54             3.6             54
              Residential                     0.65            55            0.65             55
                                 Trips/
   4           Childcare                      0.63            59              0              0
                                 child
  5, 6                                        2.4             88             0.1             4
             Business Park     Trips/ 100
  8, 9                                        2.4            123             0.1             5
                                m2 GFA
 10-16      Innovation Area                   2.4            414             0.1             17
 17-19        Residential      Trip/ unit     0.65            59            0.65             59
                               Trips/ 100
   21        Business Park                    2.4             73             0.1             3
                                m2 GFA
                               Trips/ 100
   22        Medical Centre                   5.1            112             2.9             62
                                m2 GFA

The Noosa Business Centre surrounding development traffic has been assigned to the road
network using the same assignment assumptions as for the Lot 1 Shopping Centre
development, see Section 8.6.2. The resulting trip assignment for the committed
developments are shown in the traffic flow diagrams in Appendix C.

8.6        Proposed Development
8.6.1      Trip Generation

8.6.1.1    Retail (Shopping Centre) Use New Trips
The existing shopping centre generated trips, as identified in Table 12 can be summarised as
follows:
        1,577 trips during the Thursday evening peak hour at a rate of 4.98 trips per 100 sqm.
        2,223 trips during the Saturday morning peak hour at a rare if 7.02 trips per 100 sqm.
Note that the traffic generation of a retail centre does not linearly increase as the Gross Floor
Area (GFA) increases. As the total GFA increases, the serviced catchment area remains the
same, therefore the traffic generation rate of the centre is limited and decreases as the GFA
of the centre increases.
To account for this phenomenon, SLR has adopted the traffic generation rate decay profile
outlined in the Pre-Construction Process Manual prepared by Transport of Main Roads (TMR).
The adopted decay curves, adjusted to the existing traffic volumes and trip rates are illustrated
on Figure 7. The standard decay curve values and the adjusted trip rates representing the
Noosa Shopping Centre decay curve are tabulated in Appendix D. The ITE Decay Curve for
the weekday PM Peak Trip Rate curve was adjusted by -2.50 and the Saturday Midday Peak
Trip Rate Curve was adjusted by -1.71.
The development of the adjacent site, Lot 3, will function as part of the same shopping centre,
as the two developments will be connected by an internal pedestrian pathway. Therefore, the



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