Response to Further Advice - Road Safety Audit Report 22BRT0122 RSA_2_250722 · OPW25/0042

  Table 4.2: Crash Severity Profiles (as per Austroads GRS Part 6)

      Severity                                          Description
      Fatal                                             Likely death at scene or within 30 days of the crash
      Serious                                           Admitted to hospital
      Moderate                                          Major first aid and/or presents to hospital (not admitted)
      Minor                                             Minor first aid
      Insignificant                                     Likely trivial injury or property damage only

  Table 4.3: RSA Risk Matrix (Replication of Figure 10.2 from Austroads GRS Part 6)

                                                                                                  Severity
                                                               Insignificant         Minor        Moderate         Serious        Fatal
                                                                                                  Major first
                                                                                                  aid and/or                   Death within
                                                                 Property          Minor First                   Admitted to
                                                                                                  presents to                   30 days of
                                                                 Damage               Aid                         Hospital
                                                                                                 hospital (not                  the crash
                                                                                                   admitted)
                             Almost                                                                               Extreme       Extreme
                                        One per quarter         Medium               High           High
                             Certain                                                                                (FSI)         (FSI)
                                                                                                                  Extreme       Extreme
                              Likely    Quarter to 1 year       Medium             Medium           High
                                                                                                                    (FSI)         (FSI)
       (includes exposure)




                                                                                                                                Extreme
                             Possible     1 to 3 years             Low             Medium           High         High (FSI)
                                                                                                                                  (FSI)
                                                                                                                                Extreme
                             Unlikely     3 to 7 years         Negligible             Low         Medium         High (FSI)
       Likelihood




                                                                                                                                  (FSI)
                                                                                                                  Medium
                              Rare          7 years +          Negligible          Negligible        Low                        High (FSI)
                                                                                                                   (FSI)
  FSI – Denotes where the level of risk also includes Fatal or Serious Injuries.


  It is noted that this risk ranking is based on the subjective engineering assessment of the audit team of
  expected likelihood and severity. With regards to likelihood, guidance has been drawn from any respective
  crash history related to the identified issue. Where there is no crash history, likelihood has otherwise been
  assumed based on the audit team judgement.

  As for severity, guidance for this used to determine the most suitable crash severity has been considered
  based on the speed environment and kinetic energy threshold levels (as previously discussed Section 2.3).

  Austroads GRS Part 6 suggests the corresponding priorities for mitigation, based on the selected ranking,
  should be as follows:

  •     Negligible – no action required.
  •     Low – should be corrected.
  •     Medium – should be corrected or the risk significantly reduced, if the treatment cost is moderate, but
        not high.



Site: Serenity Close Noosa Heads – Thematic RSA Report
Reference: 22BRT0122 RP01_2_RSA