15-001261-TN01.WA

TECHNICAL NOTE
Project:               Palm Lake Cooroy – Resort and Aged Care Development

Subject:               Elm Street/Pearson Road Intersection Upgrade and Staging Clarification

Date:                  7 December 2016

Our Ref:               15-001261-TN01.WA.DOCX

INTRODUCTION
This technical note has been prepared to provide clarification on the upgrades required at the completion of Stage 2 on
the Elm Street/Pearson Road intersection for the Palm Lake Cooroy Development. Analysis will be undertaken on the
traffic generated by Stages 1A and 2 only.


METHODOLOGY
Analysis of the traffic impacts of Stages 1A and 2 on the external network and on the Elm Street/Pearson Road
Intersection have be undertaken adopting the methodology outlined in the Cooroy Retirement Community Traffic Impact
Assessment prepared in February 2016 by Calibre Consulting, lodged with initial development package (MCU 15/0111
and REC 15/0031)


TRAFFIC GENERATION/DISTRIBUTION
Traffic generation from the Cooroy Retirement Community will be limited to Stages 1A and Stage 2 to determine if the
existing intersection performs satisfactorily up to the completion of these stages.


 Stage            Proposed Site Activity            Number of Units       AM Period Trips1            PM Period Trips1

   1A         Independent Living Units (ILUs)               40            0.5 × 40 = 20 ‫݌ݒ‬ℎ           0.5 × 40 = 20 ‫݌ݒ‬ℎ
   2          Independent Living Units (ILUs)               65            0.5 × 65 = 33 ‫݌ݒ‬ℎ           0.5 × 65 = 33 ‫݌ݒ‬ℎ
 Total                                                      105                 53 vph                     53 vph


Adopting the methodology outlined in the February 2016 report, the directionality of trips in/out of the site is as follows:
    •      In/out split of 30/70 during the AM peak hour, with the reverse during the PM peak hour.
    •      Total two-way 32 vph development traffic at the Elm Street (Cooroy Connection Road)/Pearsons Road
           intersection. During the morning peak hour, 10 vph travel towards the site, and 22 vph travel away from the site.
           The reverse is anticipated during the evening peak hour.
    •      Total two-way 21 vph development traffic at the Elm Street (Cooroy Connection Road)/Lamont Road
           intersection. During the morning peak hour, 6 vph travel towards the site, and 15 vph travel away from the site.
           The reverse is anticipated during the evening peak hour.




1 Roads and Traffic Authority NSW, “Guide to Traffic Generating Developments” (2002)




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