Traffic Report - responses 11 to 16

Figure 6: Turn Warrant Requirements for Intersection Design


                                                             41vph max.




A line has been added to Figure 6 to overlay the through traffic volume that would be applicable to the
requirement for a right turn lane, representing the maximum hourly through traffic flow. This indicates that
regardless of any addition of right turning movements, the right turning traffic volume will not require
upgrade from a Basic Right Turn treatment.
As such, from a turn warrant perspective, the addition of site traffic does not increase the intersection
design requirement. Notwithstanding, the current intersection does not include the widening as per a
typical BAR treatment and upgrade could be undertaken to bring the intersection up to current standards.
Any required upgrade works should tie into the recommended 6.2m pavement width of Kabi Road, see
Section 5.4.
As this is not a requirement of the development traffic, it is suggested that the cost of this work could be
offset against any infrastructure contribution requirement.

SIDRA Intersection Assessment
Overlaying the forecast site traffic generation on recorded traffic volumes at the Cootharaba Road /
Kabi Road intersection requirements, Figure 7 – 9 estimate the turning volumes with the addition of
development traffic in the nominated hourly periods.
The operation of the Cootharaba Road / Kabi Road intersection with these traffic volumes, adopting a basic
intersection form (no turn lanes) has been calculated utilising SIDRA Intersection. The findings of the
assessment are provided at Appendix D to this report and summarised in Table 6.




www.bmctraffic.com.au                                                                                          18
BMC22089: 59 Kabi Road, Cootharaba
22 March 2023