MCU14/0056 Traffic Addendum Att F - Information response

 

PEKOL TRAFFIC & TRANSPORT

Myall Street / Bruce Highway Ramps Intersection

A SIDRA analysis has been undertaken on the existing Myall Street / Bruce Highway Ramps priority
intersection. It is noted, however, that this intersection is to be upgraded to a new two lane roundabout as
part of Section A of the Bruce Highway Upgrade (Cooroy to Curra). The proposed upgrades will
significantly increase capacity at this intersection. Therefore, this analysis on the existing intersection

configuration represents a worst case scenario of development impact.

The results of the SIDRA analysis of the Myall Street / Bruce Highway Ramps priority intersection are

attached in Appendix E, and are summarised in Table 8.
The following gap acceptance parameters have been adopted for this intersection:

== Ahead and left turn from major road: critical gap — 5 seconds; follow-up headway - 3 seconds

== Right hand turn from minor road: critical gap — 6.5 seconds; follow-up headway - 4 seconds

Table 8: MYALL STREET / RRUCE HIGHWAY RAMP INTERSECTION OPERATIONS
PEAK HOUR & 95%
SCENARIO bos QUEUE CRITICAL MOVEMENT
Evening Peak
2014 Existing 21% 0.1 Bruce Highway Ramps - Left
2017 Pre Development 22% 0.2 Bruce Highway Ramps - Left
2017 Post Development 25% 0.2 Bruce Highway Ramps - Left
2027 Pre Development 24% 0.2 Bruce Highway Ramps - Left
2026 Post Development 28% 0.2 Bruce Highway Ramps - Left
Saturday Peak
2014 Existing 18% 0.1 Bruce Highway Ramps - Left
2017 Pre Development 18% 0.2 Bruce Highway Ramps - Left
2017 Post Development 21% 0.2 Bruce Highway Ramps - Left
2027 Pre Development 20% 0.2 Bruce Highway Ramps - Left
2027 Post Development 23% 0.2 Bruce Highway Ramps - Left

Table 8 demonstrates that the Myall Street / Bruce Highway Ramps intersection is expected to experience
“excellent” operations during the morning and evening peak periods. The addition of the development

related traffic is not expected to significantly affect the critical degree of saturation or queuing.

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