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

20 Hofmann Drive, Noosaville | Traffic Impact Assessment

The SIDRA analysis results are summarised in Table 11.2.

Table 11.2 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           1,393        0.32         9           15 West                                                            ✓
        2020 BG             1,400        0.33         9           15 West                                                            ✓
     2020 BG+DEV            2,029        0.60         11          41 West                                                            ✓
        2030 BG             1,472        0.35         9           16 West                                                            ✓
     2030 BG+DEV            2,102        0.63         11          46 West                                                            ✓
                             Weekday PM Peak Hour (3:00pm – 4:00pm)
      2019 Survey           1,418        0.38         9           19 West                                                            ✓
        2020 BG             1,425        0.39         9           19 West                                                            ✓
     2020 BG+DEV            1,859        0.58         10          37 West                                                            ✓
        2030 BG             1,496        0.41         9           21 West                                                            ✓
     2030 BG+DEV            1,932        0.61         10          42 West                                                            ✓

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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