Attachment 5 - Traffic Impact Assessment Final PTT · 132005.638.06

All current vehicle movements of landfill waste from RRA1 to the landfill are vehicles carrying containers
(type M). It is recommended that vehicles dispose of this waste stream at the bulk tipping floor, for operator
sorting recovery, and ultimately transport to the landfill as part of the stream from the Transfer Station area.
This will minimise traffic interactions between users of the NRRF and operational vehicles, eliminate the
inefficiency of operators accessing WB1, 2 or 3 for these movements, and to optimise recycling and recovery
of materials in this waste stream. There are a low number of vehicles carrying sensitive landfill materials to
the NRRF including dead animals, contaminated soil and asbestos (15 vehicles in November data). This
waste requires special disposal at the landfill (not for deposit at RRA1, or combination with other landfill
waste at the Transfer Station in open areas). It is recommended that these vehicles be directed to the Bulk
Tipping Floor via WB1 for NSC escort to disposal areas and monitoring on a case-by-case basis.


2.2.2        Queuing before weighbridges
Passing the weighbridge includes collection of information on registration, customer details, waste type,
weight of vehicle, payment and wayfinding support. Passes over the weighbridge are estimated to take less
than one minute, occurrences of up to four passes per minute were present in the November data, it is
assumed that the weighbridge is likely able to pass two to three vehicles per minute (20-30 seconds
processing each). This is consistent with observations of weighbridge operations during multiple site visits
and is assumed to be consistent regardless of vehicle type. To review queuing likelihood and length at the
weighbridge, incoming vehicle weighbridge passes have been separated into weighbridge streams, however
there is no data for the arrival time of vehicles prior to passing the weighbridge. Without arrival time or
processing time data there is reduced accuracy in assessing required queue length prior to weighbridges.
The maximum queue length to WB1 is 40m prior to queuing into the roundabout and access entryway. For
the maximum vehicle size (19m) this queue length is two arrivals during a vehicle being processed, or three
simultaneous arrivals. In the data, there are occurrences of multiple vehicle weighbridge passes per minute,
likely due to multiple arrivals per minute refer Table 5. However, there are few instances where this occurs
for multiple minutes in a row, refer Table 6. At the highest frequency, there were multiple vehicles passing
weighbridge for additional 2 consecutive minutes (three minutes of processing multiple vehicles total). This
occurred once for weighbridge 1 and twice for weighbridge 2.
With removal of traffic streams from weighbridges, option for vehicle bypass, and addition of a second
incoming vehicle weighbridge, it is anticipated that queuing into Eumundi-Noosa Road can be managed.
This should be monitored after implementation and the risk evaluated by the NSC operational team.
Table 5      Minutes between vehicle weighbridge passes and number of vehicle arrivals per minute

 Minutes between weighbridge passes       Weighbridge 1 - Transfer Station                 Weighbridge 3 - RRA1 Access
 0:00                                     855                                              1150
 0:01                                     1057                                             1372
 0:02                                     1036                                             1326
 0:03                                     300                                              384
 0:04                                     357                                              447
 0:05                                     109                                              143

Table 6      Consecutive instances of multiple vehicle passes per minute

 Number of consecutive multiple           Weighbridge 1 - Transfer Station                 Weighbridge 3 - RRA1 Access
 vehicle per minute passes
 1                                        73                                               93
 2                                        1                                                2

The weighbridge included in the masterplan is for vehicles 20m or less in length, with option to bypass and
weight of waste deemed. This is consistent with the articulated design vehicle of overall length 20 m from
Australian Standards (AS289003:2018 - Off-street commercial vehicle facilities), noting that Eumundi-Noosa
Road and Emu Mountain Roar are not part of the B23 route (B-Double 23m network) under the National
Heavy Vehicle Regulator (NHVR).
                                                     Project number 526384 File Noosa Masterplanning Report 2025-02-07 Revision 0   7