Appendix C - Traffic Assessment Report

Table 2:         RISK ASSESSMENT

                                                                             Without
                                                                                                    With Development
                                                                       Development




                                                                               Consequence




                                                                                                                 Consequence
                                                                Likelihood




                                                                                                    Likelihood
 RISK ITEM




                                                                                             Risk




                                                                                                                               Risk
 Increase in left-turn traffic volumes (rear
 end crash with left-turning traffic: DCA                          -              -           -       1             1           L
 Code 302)

 Increase in right-turn traffic volumes (rear
 end crash with right-turning traffic: DCA                         -              -           -       1             1           L
 Code 303)

 Increase in right-turn traffic volumes
 (opposing approach right-turn / through                           -              -           -       1             2           L
 crash: DCA Code 202)

 Increase in right-turn traffic volumes
 (opposing approach right-turn / left-turn                         -              -           -       1             2           L
 crash: DCA Code 203)

 Increase in left / right turns out of site
 driveway (side-swipe crash upon exiting a                         -              -           -       1             1           L
 driveway: DCA Code 406)


TURN WARRANT ASSESSMENT
Section C9.2 of Austroads’ Guide to Traffic Management Part 6: Intersections, Interchanges and
Crossings deals with the application of warrants for turn lanes. With respect to the use of these warrants,
Austroads states that they are based on the construction of new intersections on new roads (ie greenfield
sites) and:

           “although not intended for direct application to accesses and driveways, they may be used as a
           reference for such.”

This confirms that the warrants are primarily for the construction of intersections on new roads and
Austroads does not mandate the application of the warrants for turn lanes at site access driveways. This
guidance is also accepted by TMR’s Road Planning and Design Manual (RPDM). As such, we believe the
application of warrants for turn lanes is not required for the access driveway, because:

        the access driveway is not an intersection
        historic crash data indicates no evidence of a safety risk on the surrounding road network
        traffic volumes using the access will be very low (ie one vehicle in the peak hour)
        the addition of one vehicle on the access driveway during the peak hour is not expected to have a
        significant adverse impact on the safety of the access or surrounding road network or a noticeable
        impact on the operation of the surrounding road network



P:\2021-22\22-192 1179 LOUIS BAZZO DRIVE, COOTHARABA\OUTPUTS\22-192 LETTER REPORT_FINAL.DOCX                                          7