MCU14/0106 Appendix D - Traffic Impact Assessment

                                                                                            Traffic Impact Assessment
                                                                                               Noosa Civic Expansion



5.6.13         Intersection 13: Northern Access/Northern At-Grade Access
The intersection of Northern Access/Northern At-Grade Access is proposed to be a four-way roundabout with
a single circulating lane. The proposed layout of the intersection will connect the existing Inner Ring Road
from the north with the Northern Access forming the eastern leg. Central Road will be constructed with the
development, adjoining the intersection from the southern approach. The Northern At-Grade Access forms
the western leg of the intersection and will provide access to the at-grade car parking supply north of the
proposed expansion. The proposed layout of the analysed intersection is presented on Figure 5-18. Results
for the analysis are summarised in Table 5-19. As the intersection will be constructed with the development,
there are no background traffic volumes and only development traffic volumes from 2018 are applicable to
this intersection.

Figure 5-18 Intersection 13: Northern Access/Northern At-Grade Access




Table 5-19 Intersection 13: SIDRA Results – Proposed Layout
                                          Thursday PM Peak Hour                    Saturday AM Peak Hour
Scenario
                                                                 95th%le                                 95th%le
                                  DOS          Delay (sec)                  DOS         Delay (sec)
                                                                Queue (m)                               Queue (m)

2018 with Development              0.31             7                 15    0.33            7               15

2028 with Development              0.31             7                 15    0.33            7               15

The results indicate that the proposed layout has adequate capacity for the development scenarios at the
2028 design horizon.




J13041                                                       Cardno                                   December 2014
Prepared for QIC Noosa Civic Pty Ltd                                                                       Page 37