MCU10/2083 Development Application part 2 - Attachment 5 - Traffic and Transport Assessment Report

Traffic & Transport Assessment -
Road Network Performance




7. Road Network Performance

7.1      SIDRA Analysis
               Halcrow adopted the SIDRA software package to analyse the performance of the Gibson Road /
               Thomas Street / Skipper Place roundabout intersection as a result of the proposed development
               traffic generation over the 10 year planning horizon.

7.2      Gibson Rd / Thomas St / Skipper Pl Intersection Performance
               The results of the SIDRA intersection performance analysis for the Gibson Road / Thomas Street /
               Skipper Place roundabout intersection are presented in Table 7-2.
         Table 7-1           Intersection Performance Analysis Results Summary

                                                             Intersection Performance Measure
                 Scenario                   Level of   Degree of     Average       95th Percentile Queuing (m)
                                            Service    Saturation     Delay     South     East    North     West

 2010 Thurs PM Peak                            B          53.9%       14.8s       2.8     34.3     23.7     40.4
 2010 Thurs PM Peak with Development           B          58.3%       16.2s       6.3     40.1     28.1     44.4

 2022 Thurs PM Peak Base Case                  B          71.0%       19.9s       5.1     71.4     52.3     67.9
 2022 Thurs PM Peak Project Case               C          76.1%       23.0s      10.6     87.7     65.8     76.8


               The analysis of the existing peak hour periods, with and without development traffic included, found
               that the intersection operates within acceptable performance parameters with a maximum Degree
               of Saturation of 58% (max. allowable 85%).
               Analysis of the intersection over the 10 year planning horizon, with and without development traffic
               included, found that the intersection also operates within acceptable performance parameters
               during the Thursday PM peak hour period with a maximum Degree of Saturation of 78% (max.
               allowable 85%).

7.3      Conclusion
               The analysis finds that there are no adverse impacts on the surrounding road network as a result of
               the proposed development.




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