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Traffic Report
Attached to the e-mail MCU16/0081 Geotechnical report, Landscape Plan, SMP, Traffic report - Email 3 of 3.
In reply please refer to:
Our: Ross Wegner
At: Bundaberg
Our Ref: CC-3528
8 July 2016
Knowles Group
PO Box 117
BUDERIM QLD 4556
Attention: Mr Peter Duffy
Dear Sir,
Re: Proposed Aged Care Facility
at Walter Hay Drive, Noosaville
Empire Engineering Pty Ltd (Empire Engineering) has been commissioned by Knowles Group to prepare
a Traffic Impact Statement for a residential aged care facility at Walter Hay Drive, Noosaville (Lot 3
SP246584). To assist in the preparation of this Statement, Knowles Group has provided Empire
Engineering with a copy of the proposed development plans prepared by Oskia Designs and dated 14
June 2016 (the development plans).
The development plans show that the proposed development includes 90 x 1 bed suites and associated
facilities such as lounge, dining, activity and medical rooms as well as administrative facilities. The
development proposal also includes onsite parking for 51 vehicles. The car park is accessed via a
driveway link to Walter Hay Drive.
Traffic Analysis
The Guide to Traffic Generating Developments (GTGD) (RTA, 2002) has been used to calculate
generated traffic volumes for the development proposal. The GTGD suggests pm peak hour
generation rates to be adopted for housing for aged and disabled persons is 0.1-0.2 trips per peak
hour.
Applying the upper limit generation rate to the development proposal results in 18 trips per peak hour.
It is assumed that the majority of these trips would be staff exiting the facility for their evening
commute home and possibly some visitors or staff entering or leaving the facility. It is reasonable to
assume that the direction of travel would be split relatively evenly between northbound to Noosaville
and Tewantin etc and southbound towards the greater Sunshine Coast area.
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Page 2
It is proposed that the site access will connect to the surrounding road network at the existing 3-way
roundabout controlled intersection of Walter Hay Drive and the access to Noosa Civic Shopping Centre.
It is proposed that the site access will form a fourth, eastern approach to this existing roundabout, refer
to the attached Concept Site Access Layout Plan.
The configuration of the existing roundabout is dual (2) 5m wide circulating lanes and a 50m internal
island diameter. In accordance with the Austroads Guide to Traffic Management Part 3: Traffic Studies
and Analysis, the circulating flow capacity of this roundabout would be in the vicinity of 2500 veh/hour.
The proposed development would therefore account for less than 1% of the total peak hour capacity of
the roundabout. That being the case the development traffic does not have the potential to tangibly
impact on the operation of this existing roundabout. It is also suggested that the addition of the fourth
leg will not impact on the operation of the roundabout as the proposed entry point to the roundabout
has over 60m of circulating separation to the southern approach leg and 18 generated peak hour trips
averages out to one single vehicle movement every 200 seconds. The gap acceptance parameter on the
southern approach will therefore be largely unaltered by the addition of the eastern approach.
Upon accessing Walter Hay Drive the development generated traffic is not of sufficient quantity to result
in downstream impacts.
Site Distance
The Austroads Guide to Road Design Part 4B: Roundabouts suggests that there are 3 sight distance
requirements on a roundabout, as follows:
1. Approach Sight Distance (ASD);
2. Minimum Gap Sight Distance (MGSD) of 4-5 seconds at 30km/h (equating to 42m) for an arterial
roundabout; and
3. An adequate line of site between vehicles on adjacent approaches.
As can be seen on the attached Roundabout Sight Triangles Plan the required sight distance criterion
can be comfortably satisfied at the location of the proposed access to the roundabout.
Internal Circulation and Parking
The internal driveway and car park layouts have been assessed against the requirements of AS/NZS
2890 Parking Facilities (AS2890) for user class 2. AS2890 specifies that angle parks at 90 degrees should
have minimum dimensions of 2.5mx5.4m or 2.5mx4.8m where nose overhang is available with a 5.8m
wide aisle width. These conditions as specified by AS 2890 are achievable on the development site
layout plan. A swept analysis has also been prepared using auto-turn software. For the analysis a B85
passenger vehicle and a 12.5m waste collection vehicle were used. The swept path plans are attached
to this Traffic Impact Statement and indicate an acceptable standard of access to the parking bays and
service bay.
Conclusion
The analysis completed as part of this Traffic Impact Statement has found that the proposed aged care
residential development located at Walter Hay Drive, Noosaville will not have a tangible negative impact
on the existing operational conditions of the surrounding road network. Furthermore it is suggested that
the proposed development is pursuant to the intended function of the surrounding road network.
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Page 3
The sight distance investigation has also found that excellent sight distance is achievable at the location
of the proposed site access connection to the existing roundabout controlled intersection of Walter Hay
Drive and the access road to Noosa Civic Shopping Centre.
The layout of the car parks and driveway access was found to be compliable with the requirements of
AS2890 and a swept path plans showing unrestricted access are attached.
Should you have any queries please contact the undersigned at our Bundaberg office.
Yours faithfully
Ross Wegner
for and on behalf of
EMPIRE ENGINEERING Pty Ltd
Att: Concept Site Access Layout Plan
Roundabout Sight Triangles Plan
Swept Path Analysis Plan
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Page 4
SITE ACCESS LAYOUT
WARNING
OVERALL LAYOUT
Bundaberg Gladstone Sunshine Coast
66A Barolin Street Bundaberg Qld 1/43 Tank Street Gladstone Qld 45 Brisbane Road Mooloolaba Qld
PO Box 2052 Bundaberg Qld 4670 PO Box 1743 Gladstone DC Qld 4680 PO Box 102 Mooloolaba Qld 4557
T: 07 4154 4894 T: 07 4972 5387 T: 07 5477 6437
E: [email protected] E: [email protected] E: [email protected]
Page 5
LEGEND
WARNING
Bundaberg Gladstone Sunshine Coast
66A Barolin Street Bundaberg Qld 1/43 Tank Street Gladstone Qld 45 Brisbane Road Mooloolaba Qld
PO Box 2052 Bundaberg Qld 4670 PO Box 1743 Gladstone DC Qld 4680 PO Box 102 Mooloolaba Qld 4557
T: 07 4154 4894 T: 07 4972 5387 T: 07 5477 6437
E: [email protected] E: [email protected] E: [email protected]
Page 6
SITE ACCESS - INGRESS / EGRESS VEHICLE MOVEMENTS
B85 DESIGN VEHICLE PROFILE
WCV DESIGN VEHICLE PROFILE
CARPARK - INGRESS VEHICLE MOVEMENTS CARPARK - EGRESS VEHICLE MOVEMENTS
WARNING
TYPICAL CLASS 2 CARPARK DETAILS
Bundaberg Gladstone Sunshine Coast
66A Barolin Street Bundaberg Qld 1/43 Tank Street Gladstone Qld 45 Brisbane Road Mooloolaba Qld
PO Box 2052 Bundaberg Qld 4670 PO Box 1743 Gladstone DC Qld 4680 PO Box 102 Mooloolaba Qld 4557
T: 07 4154 4894 T: 07 4972 5387 T: 07 5477 6437
E: [email protected] E: [email protected] E: [email protected]