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

20 Hofmann Drive, Noosaville | Traffic Impact Assessment

Table 11.1 SIDRA Results – Hofmann Drive / Noosa Civic / Site 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            863         0.28          8             12 South                                                        ✓
        2020 BG              868         0.29          9             12 South                                                        ✓
     2020 BG+DEV            1,496        0.46         10             26 North                                                        ✓
        2030 BG              911         0.30         10             13 South                                                        ✓
     2030 BG+DEV            1,539        0.47         10             28 North                                                        ✓
                             Weekday PM Peak Hour (3:00pm – 4:00pm)
      2019 Survey            960         0.31         10             14 South                                                        ✓
        2020 BG              966         0.31         10             14 South                                                        ✓
     2020 BG+DEV            1,398        0.40         10             21 North                                                        ✓
        2030 BG             1,014        0.33         10             15 South                                                        ✓
     2030 BG+DEV            1,445        0.42         10             22 North                                                        ✓

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.

11.2 Hofmann Drive / Noosa Civic Access
The adopted SIDRA layout for the assessed intersection configuration is illustrated in Figure 11.2.




Figure 11.2 SIDRA Layout – Hofmann Drive / Noosa Civic / Site Access




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