Attachment 9 - Traffic Engineering Report

6            Traffic Impact Assessment
6.1 Scope
In accordance with standard impact assessment guidelines traffic demands have been estimated for an
anticipated development opening year of 2024 and a 10-year design horizon of 2034.

Two key intersections have been assessed for morning and afternoon peak hour periods, including:

•    Myall Street / State Route 6 / Nandroya Road Roundabout Intersection

•    Myall Street / Site Access Assessment

These intersections have been assessed based on the surveyed existing (2019) traffic demands, and
estimated traffic demands at the assumed opening year of development (2024) and 10-year design horizon
(2034).

6.2 Existing Traffic Volumes
6.2.1        Peak Hour
TTM Data conducted an intersection movement survey at the Myall Street / State Route 6 / Nandroya Road
Roundabout Intersection, from 7:00am to 6:30pm on Thursday 22nd August 2019. The peak hours were
found to be 7:45 to 8:45am and 4:00 to 5:00pm. The results of the survey are shown below in Figure 6.1.
2019 Surveyed Data
AM Peak                                Site Access
PM Peak
                                        0    0
                                        0    0

                                             0       0
          Myall Street                                                                                        Nandroya Road
                            0   0            0       0                         82 65
           407 509         407 509                         407 509   407 509   325 444                            96 85
           450 412                                0   0    450 412   450 412                       84    62       106 83
                                                 450 412                           366 20          22    21
                                                                                   350 14



                                                                                         386 346
                                                                                         364 466

                                                                                         State Route 6


Figure 6.1: Surveyed Peak Hour Traffic Volumes

It is important to note that the existing Cooroy golf clubhouse, located on the northern portion of Lot 33 on
MCH2281, is accessed via a crossover to Myall Street. All parking for the golf course is accessed via this
crossover. As such, all vehicles travelling northward to the existing clubhouse along Myall Street were




Site: Lot 2 & 3 Myall Street, Cooroy                                                                                          17
Reference: 19BRT0357