15-001261-TN01.WA

TECHNICAL MEMO
TURN WARRANT ANALYSIS
The existing Elm Street/Pearsons Road intersection with development traffic from Stages 1A and 2 has been examined
against the TMR turn warrants below.




              Peak Hour Turn Movement From Major Road                 Major Road Traffic Volume Parameter
            Current Year Without Development
                     QR = 37 vph max during AM Peak Hour          QM = 972 vph total two-way AM Peak Hour
                    QR = 58 vph max during PM Peak Hour           QM = 1004 vph total two-way PM Peak Hour
            Current Year With Development Stages 1A and 2
                     QL = 4 vph max during AM Peak Hour           QM = 715 vph total one-way AM Peak Hour
                     QL = 5 vph max during PM Peak Hour           QM = 515 vph total one-way PM Peak Hour
                     QR = 45 vph max during AM Peak Hour          QM = 992 vph total two-way AM Peak Hour
                     QR = 58 vph max during PM Peak Hour          QM = 1025 vph total two-way PM Peak Hour

When comparing the blue and purple symbols (circle and triangle) it can be seen there is minimal difference in
intersection condition.
Analysis performed against the TMR turn warrants demonstrates that the existing Elm Street/Pearsons Road intersection
without inclusion of development traffic requires an upgrade (full channelized right turn treatment to facilitate right turns
from the southern leg of the intersection). With inclusion of development traffic (Stage 1A and 2), turn conditions are
marginally worsened.
Calibre Consulting is currently seeking final operational works approval with DTMR to address ultimate conditions at Elm
Street/Pearson Road intersection. Responses to information requests have been lodged and approval is expected
imminently. Construction is programmed to commence in early 2017.
Any further queries regarding this matter please do not hesitate to contact Andrew McPhail or the undersigned on 3895
3444.




Wade Arthur
Manager (Transport) – Brisbane




 15-001261-tn01.wa.docx                                                                                                    3