Appendix G

                                                                                                                                                       14




Table 4- 1: Operational Characteristics of the existing Cooroy-
                                                        Cooroy -Noosa Road / Carramar
Access / Access to Local Development i ntersection – 2022
                                                        20 22 AM and PM Base / Design
Scenarios
                                                       2022 Base                                           2022 Design

                                       AM Peak                       PM Peak                AM Peak                      PM Peak
   Approach        Movement      Maximum         th
                                              95 %ile       Maximum            th
                                                                          95 %ile     Maximum         th
                                                                                                   95 %ile       Maximum      95th%ile
                                 Degree of    Back of       Degree of     Back of     Degree of    Back of       Degree of    Back of
                                 Saturation   Queue         Saturation    Queue       Saturation   Queue         Saturation   Queue
                                    (X)         (m)            (X)          (m)          (X)         (m)            (X)         (m)

                        L           0.02         0.5          0.03             0.7      0.02          0.5           0.03           0.7
 Access to local
 development -         T            0.02         0.5          0.03             0.7      0.02          0.5           0.03           0.7
     South
                       R            0.02         0.5          0.03             0.7      0.02          0.5           0.03           0.7

                        L           0.33         52.5         0.50             84.5     0.33          53.4          0.50           84.8
 Cooroy-Noosa
                       T            0.33         52.5         0.49             84.5     0.33          53.4          0.49           84.8
  Road - East
                       R            0.32         52.5         0.50             84.5     0.33          53.4          0.50           84.8

                        L           0.04         0.9          0.09             2.3      0.05          1.3           0.11            3
Carramar Access
                       T            0.03         0.9          0.08             2.3      0.05          1.3           0.11            3
     – North
                       R            0.04         0.9          0.09             2.3      0.05          1.3           0.11            3

                        L           0.53         86.3         0.40             71.7     0.53          86.7          0.42           71.8
 Cooroy-Noosa
                       T            0.53         86.3         0.42             71.7     0.53          86.7          0.42           71.8
  Road - West
                       R            0.50         86.3         0.50             71.7     0.50          86.7          0.50           71.8
Note: Practical Maximum Degree of Saturation (Xp) for unsignalised intersection is 0.80.

A comparison of the data contained in Table 4-1 between the existing facility (“base” with 110
beds) and the proposed extension (ultimate “design” with a total of 142 beds), helps quantify the
direct effect that the proposed additional 32 beds would have on Cooroy-Noosa Road.

The information contained in Table 4-1 illustrates that the existing Cooroy-Noosa Road /
Carramar Access / Access to Local Development intersection would operate satisfactorily from a
capacity point of view with simple BAR / BAL geometry (i.e. no right or left turn auxiliary lanes) for
both the 110 beds and the 142 beds scenarios.

The existing Cooroy-Noosa Road has a 1.5m wide cycle lane which is marked along both sides
of the road in the vicinity of the subject site. The width of the cycle lanes increases from 1.5m to
3.3m at the Carramar Access intersection; therefore the actual width of the road at the Cooroy-
Noosa Road / Carramar Access / Access to Local Development intersection could technically
accommodate an additional traffic lane. In reality, although unmarked, the intersection currently
does provide a short additional lane for turning traffic.

A schematic SIDRA generated illustration of the intersection layout which reflects this actual
operation of the intersection is shown in Figure 4-2.




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