F - Traffic Response and Revised Traffic Impact Assessment (17.09.19)

20 Hofmann Drive, Noosaville | Traffic Impact Assessment


11.3 Eenie Creek Road / Hofmann Drive
The adopted SIDRA layout for the assessed intersection configuration is illustrated in Figure 11.3.




Figure 11.3 SIDRA Layout – Hofmann Drive / Noosa Civic / Site Access

The SIDRA analysis results are summarised in Table 11.3.

Table 11.3 SIDRA Results – Hofmann Drive / Noosa Civic Access
                                                   Critical
                           Demand                             95th %ile Queue                                                   Acceptable
       Scenario                          DOS      Average
                          (vehs/hr)                                 (m)                                                        Performance
                                                 Delay (sec)
                            Weekend AM Peak Hour (11:15am – 12:15pm)
      2019 Survey           2,232        0.36         11             18                                                              ✓
        2020 BG             2,256        0.36         11             19                                                              ✓
     2020 BG+DEV            2,816        0.46         11             27                                                              ✓
        2030 BG             2,511        0.41         11             23                                                              ✓
     2030 BG+DEV            3,036        0.59         14             41                                                              ✓
                             Weekday PM Peak Hour (3:00pm – 4:00pm)
      2019 Survey           2,368        0.35         11             18                                                              ✓
        2020 BG             2,395        0.35         11             19                                                              ✓
     2020 BG+DEV            2,788        0.46         13             25                                                              ✓
        2030 BG             2,681        0.41         11             23                                                              ✓
     2030 BG+DEV            3,075        0.50         13             31                                                              ✓

The analysis results indicated that the existing intersection will perform within typical design thresholds
for a roundabout intersection (i.e. DOS less than 0.85 and average delays less than 57 seconds) at the
assessed year of opening development scenarios.



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