220527 Sight Distance Assessment and IR Responses

                                                                        North East Direction
                                West Direction




                                                                 South East Direction


         = Proposed Crossover
     Location to Melaleuca St


Figure 6 – Sight Distance Direction as referenced in Table 1

As detailed in Table 1, the available sight distance for the proposed crossover location to
Melaleuca St complies with AS2890.1 for all vehicles approaching the proposed driveway
location.

Driveway Assessment Against IPWEA Drawing RS-049 and RS-050

360 Civil Consulting Drawing No. 2022033 Dwg No. 03 of 05 (Issue A) provides a plan
detailing the proposed location of the new driveway. The distance from the tangent point
to the edge of the crossover has been measured to be 6.7m. As such, the proposed
crossover is not located within the prohibited zone on IPWEA Drawing RS-049.

The proposed driveway long section which is contained in Appendix A is also compliant with
the requirements in AS2890.1 and RS-050. The driveway long section shows that the first
grade from invert of kerb has been reduced from the standard 12.5% to 8% due to the
existing road cross fall being greater than the standard 3%.

Summary

The proposed Melaleuca St crossover and driveway to service the new dwelling on 38
Tristania Dr, Marcus Beach has been assessed against the sight distance requirements
contained in AS2890.1, IPWEA Standard Drawing RS-049 and RS-050.

In determining the compliance against AS2890.1, the design speeds of approaching vehicles
were determined to be in the order of 20km/hr from the west and 25 km/hr from the east.
The driveway was assessed against a design speed of 40km/hr and as such will provide a
conservative result. Based on an assessment of a design speed of 40km/hr, the proposed