16216_Parking & Traffic Impact Assessment Report_1502017

                                                         Proposed Mixed Use Development, 30-32 Doonella Road, Tewantin
                                                                             Parking & Traffic Impact Assessment Report



Accordingly, it is likely that the proposed development will result in an increase in the traffic generation
potential the site of approximately 16 veh/h as set out below:

Table 4-3     Projected Nett Increase in Peak Hour Traffic Generation Potential
 Land Use                                              Generation Rate
 Projected Future Traffic Generation Potential                  20 veh/h
 Existing Traffic Generation Potential (Estimated)               4 veh/h
 Total Trips Generated                                          16 veh/h



A brief traffic count was conducted at the site frontage for both directions of Doonella Street at approximately
8am on Friday 16th December 2016.
Three 15 minute intervals were observed with the results as follows:

Table 4-4     Peak Hour Traffic Count observed on 16 December 2016
 Doonella Street                        Eastbound                 Westbound                        TOTAL
 7:45am to 8:00am                          184                         98                            282
 8:00am to 8:15am                          248                        112                            360
 8:15am to 8:30am                          270                        122                            392
 Total (45 minutes)                        702                        332                           1034
 Approx Peak Hour                          936                        443                           1379




4.3           Traffic Assignment
Adopting a 50/50% split for trip distribution in and out given the mixed use, the 16 trips generated equate to 8
in and 8 out per hour.
Right turns are already banned due to the continuous unbroken dividing line along Doonella Street between
Memorial Avenue and Poinciana Avenue. This limits access to the development to left-in and left-out only.
Subsequently westbound access to the development will continue past the site to the roundabout at
Poinciana Avenue and conduct a U-turn back towards the site. Similarly, to leave the site and travel west will
require a U-turn at the Memorial Avenue roundabout.
Given the location of Tewantin is in close proximity to Noosaville and Noosa Heads, and the limited
development to the west of Tewantin, it is assumed that the majority of trips would be to and from the east.
During the AM peak hour, the major flow along Doonella Street is eastbound, indicating the major attraction
for traffic is to the east / coast. So adopting 75% to/from the east and 25% to/from the west, the traffic
assignment of the traffic generated by the development is as per the diagram below.




12 February 2017                                       Greys                                                        15