Appendix E- Traffic Impact Statement · MCU23/0078

 Stockwell Development Group Pty Ltd                                      SLR Ref No: 620.30926-R01-v1.0 TIA 20230524.docx
 Traffic Impact Assessment                                                                                       May 2023
 Proposed Noosa Civic Village Mixed Use Development




8.5        Development Traffic Demands
8.5.1      Retail (Shopping Centre) Use New Trips

The adopted traffic generation methodology for shopping centre use in Lot 3 and 7 is summarised below:

    1. Obtain trip generation survey data for the existing shopping centre site.

    2. Forecast trip generation of the expanded site.

The traffic surveys identified that on the surveyed days, the existing shopping centre generated:
          1,578 trips during the Thursday evening peak hour at a rate of 4.98 trips/100 sq.m GLA
          2,223 trips during the Saturday morning peak hour at a rate of 7.02 trips/100 sq.m GLA

It is important to note, that the traffic generation rate of a retail centre does not linearly increase as GLA
increases. That is, as the total GLA of a shopping centre increases, the centre’s catchment area still remains the
same, and in turn, the traffic generation of the centre is limited. This results in the floor area of an expanded
centre generating traffic at a decreasing rate as the size 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 TMR. The adopted decay curves are illustrated on

Figure 12, with the revised traffic generation rates summarised in Table 10.

Figure 12 Shopping Centre Traffic Generation Decay Curve




                                                      Page 29