07/2398 - Traffic report · 132007.2398

 

 

 

The SIDRA output data for this analysis are provided in Appendix C of this report.

Table 5 :2019 Base Case SIDRA Traffic Analysis (Elm Street / Diamond Street Intersection
Signalised)

 

 

 

 

 

 

Total
h
Traffic Highest Highest | tighest | [ahest
. 95th %lle Level Of
Intersection Entering Degree of Average
Intersection | Saturation ) back of Delay (sec) Service
Queue (m) yssec} | L.0.8)
(vph)
/ AM Peak Hour (8:00 - 9:00) -
Elm Street / .
Diamond Street 2,386 0.73 174 49 D
(Signalised)
PM Peak Hour (15:45 ~ 16:45)
Elm Street /
Diamond Street 2,213 0.72 115 38.4 D
{Signalised)

 

 

 

 

 

 

 

Note: Practical Maximum Degree of Saturation 0%} for unsignalised intersections is 0.95.

It would appear that signalisation of the Elm Street / Diamond Street intersection may be the
most cost effective means of mitigating the traffic capacity impacts on the intersection generated
by growth in background traffic. For the purposes of the subsequent assessment of the impacts
of the proposed development, it was assumed that the Elm Street / Diamond Street intersection
was signalised before 2019 due to growth of background traffic. Additional changes to the
broader road network may be being planned by DMR, which would reduce the pressure on this
intersection. However, these broader planning issues were not considered for this assessment.

Reconfiguring the intersection as a roundabout was also considered; however, given the
conflicting heavy westbound left-turn movement and heavy southbound through movement, a
roundabout configuration is not recommended. Further a roundabout does not provide
adequate provision for the likely high pedestrian movements within the town centre of Cooroy.

 
 

  

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3427-001(1)}-Final.dec: 04/12/07