Attachment 2 - Traffic Report · MCU13/0251

             the number and type of units will remain as currently approved. This is to cover the worst
             case scenario in terms of traffic impacts.

The proposal plan showing the parking layout for the retail component of the development is at Appendix
C.


5.0 Traffic impacts at the David Low Way intersection

Year 2020 traffic volume projections at the David Low Way intersection, assuming full operation of the
current approval, were documented in the Joint Expert Report (JER) at Appendix B.


5.1 Traffic generation of current approval

Both of the traffic experts in the JER agreed that the currently approved development would generate AM
peak hour traffic flows of 75 vehicles per hour, and PM peak hour traffic flows of 110 vehicles per hour.
A breakdown of how this was calculated follows:

USE                 TRAFFIC GENERATION RATE
                    morning                                     evening

Commercial (*):     2 vehicles per hour per 100 sq m            2 vehicles per hour per 100 sq m
Retail (**):        3.8 vehicles per hour per 100 sq m          12.5 vehicles per hour per 100 sq m
Restaurant (*):     5 vehicles per hour per 100 sq m            5 vehicles per hour per 100 sq m

(*)          Main Roads’ Road Planning and Design Manual
(**)         RTA ”Guide to Traffic Generating Developments. The morning traffic generation of the retail
             component of the development is assumed to be 30% of the evening rate.

Based on the above analysis, the traffic flows generated by the various components of the development
will be as follow:

USE                 GENERATED TRAFFIC FLOWS
                    morning                                     evening

Commercial:         15 vehicles per hour                        15 vehicles per hour
Retail:             15 vehicles per hour                        50 vehicles per hour
Restaurant:         15 vehicles per hour                        15 vehicles per hour
Accommodation:      30 vehicles per hour                        30 vehicles per hour

Total:              75 vehicles per hour                        110 vehicles per hour


5.2 Traffic generation of latest proposal

The previous assessment utilised a PM peak hour traffic generation rate of 12.5 vph / 100 sq m GFA for
the 387 sq m of retail in that proposal. It is widely accepted that the rate of traffic generation at shopping
centres reduces as the size of the centre increases. We have thus used a rate of 12.0 vph / 100 sq m
GFA for the 1626 sq m of shopping centre GFA. Note that we have not included the outdoor restaurant
area in the calculation for traffic generation. This is because restaurant traffic generation is significantly
lower than retail traffic generation. Thus, if there is a restaurant in the corner 84 sq m corner tenancy,
which also uses the 94 sq m outdoor dining area, the traffic generation of the combined restaurant area
would be very similar to the traffic generation of the 84 sq m tenancy if used for retail.

On the above basis, the predicted traffic generation of the overall development is as follows:



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