RFI - Traffic Engineering Report

Issue - Zoning
The southern portion of the site is included in the Environmental Management and
Conservation Zone and the proposal plan indicate earthworks, sheet piling and a rapid
infiltration swale within this zone ALTA Engineering Plan A676922PEW01. The assessment
table for the zone indicates that a Resort is an inconsistent use in the zone, and the proposed
works are not considered appropriate or consistent with the zone. The area is to be retained
for dense landscaping and screening.
The plan also indicated earthworks and sheet piling occurring within Councils reserve which
is not permitted.
Information Required
18.       Provide amended plans that remove the sheet piling and rapid infiltration swales from
          the Environmental Management and Conservation zone.
19.       Remove any details of works within Councils reserve. All reports and plans are to be
          amended to remove these works from the reserve.


Issue Transport - Ferry
The Sustainability Strategy lodged with the application indicates that the hotel will provide a
shuttle boat to ferry people to and from Hastings Street. No information has been provided
about the frequency of service or where the ferry will be moored noting that the jetty is a public
facility.
Information Required
20.       Provide further information regarding the ferry including:
          20.1. Frequency of service
          20.2. Estimates of patron/ passenger numbers
          20.3. Where the ferry is to be moored and how it will be accessed
          20.4. Arrangements in relation to access to destination jetties


Issue - Stormwater drainage
While not wanting to discourage innovation, the RIP system does appear to be a high-
maintenance solution and at high-risk of failure compared to conventional drainage. A lower
risk drainage solution which still achieves the infiltration targets could be achieved through
conventional drainage and provision of pipeless biofiltration systems.
Information Required
21.       Provide further information on the proposed rapid infiltration pits (RIPs) and justify the
          suitability compared to a conventional drainage solution, and specifically address the
          following:
      •    The SWMP Appendix D spreadsheet calculations seem to use an impervious
           catchment area for the external catchment of 4437m2, whereas the catchment plan
           shows an area of ~1.1ha. Clarify this apparent discrepancy.
      •    Provide current infiltration test data on the existing RIPs to demonstrate the infiltration
           rates both in the current state of the devices and following the routine maintenance
           required by the management plan
      •    Update the maintenance plan for the RIPs to include a performance objective of ‘No
           ponding of water within RIPs between rainfall events’ or similar




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