Appendix H Traffic Impact Assessment · RAL25/0004

3.0 Traffic generation of the proposed development

It is understood that the development could comprise up to 100 dwellings. With the site having an area
of approximately 2ha excluding the proposed access road (Road 1), it has been reasonably assumed
that if there are to be 100 dwellings that they could comprise a townhouse style product, rather than
detached dwellings on separate individual allotments.

In that context, it has been assumed that the dwellings of the development would generate peak hour
traffic flows at a rate of 0.6 vph per dwellings, noting that NSW RMS Guide to Traffic Generating
Developments recommends a medium density traffic generation rate of 0.5-0.65vph per dwelling for
townhouses having 3 or more bedrooms.

In terms of the distribution of that generated traffic to the network, the following reasonable assumptions
have been made:
     (a) Peak hour traffic flows would have a 70/30 split during peak hour periods, with 70% of traffic
         departing and 30% returning during the AM peak, and vice versa in the PM peak.

    (b) 75% of site generated traffic would be oriented toward the west along Lake MacDonald Drive
        (to/from the Elm St intersection) and 25% oriented toward the east (for travel to/from the areas of
        Noosa further east).

    (c) Of the traffic oriented toward the Elm St intersection, it is assumed that 25% would travel to/from
        the north along Elm St, and 75% would travel to/from the south along Elm St.

The assignment of site generated traffic flows to the road network estimated on the above basis, is
shown in Figure 6.




Figure 6: Predicted peak hour traffic flows generated by the proposed development


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