Referenced Document - MCU12/0216

Quarry Rehabilitation
Lake Macdonald Drive, Lake Macdonald

© 2012 - TTM Consulting (SC) Pty Ltd                                         Reference No: 12SCT0037



7.         Site & Internal Access Review
This Chapter reviews the adequacy of the Westridge Quarry access and White Pit Quarry access
intersections to adequately cater for the predicted development traffic demands.


7.1        Westridge Quarry Access Review
The intersection layout is a typical priority 3-arm intersection as shown in Figure 7.1, and has
good inter-visibility in both the north and south directions, with the following traffic and
geometric attributes:
         A posted speed limit of 80km/hr;
         Approximately 7 metre wide carriageways on all approaches; and
         A wide entry width with high radius curve leading into the Westridge Quarry access.
It is noted that a residential dwelling shares the Lake Macdonald Drive access. It is anticipated
that the residential driveway will not significantly adversely impact or be impacted upon by the
proposed development. The property owner should be made aware of the proposed haulage
activities and their comments should be taken into consideration for haulage activities.
Table 7.1 identifies the characteristics of the Westridge Quarry access with respect to Council
requirements. The last column identifies the compliance/provision of each design aspect.

Table 7.1: Westridge Quarry Access Characteristics

         Design Aspect            Council Requirement       Existing      Compliance/Provision
                                  (AS2890.1/AS2890.2)      Provision

 Crossover type/width for:
    Cars                        6 – 9m undivided       10m            Provide 9m sealed cross-over
    Design           service    20m divided            10m
     vehicle

 Minimum distance to
 adjacent feature:
    Minor intersection          6m                     300m+          Council Compliant
    Major intersection          6m                     300m+
    Adjacent driveway           6m                     120m

 Exit queue capacity             2 vehicles, 40m        50m            Council Compliant

 Gradient of first 6m            1 in 20 (5%)           Less than 5%   Council Compliant




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