Traffic Engineering Report part 1 · MCU18/0094

                                                                                            Traffic Engineering Report – 1723 Garnet


3 Driveway and Site Access
                3.1        Site Access Location
The driveway for this site accesses Wattle Street which a local access street. The number of traffic
movements on this driveway during peak times is not expected to exceed three vehicles per hours (0.65
movements per hour per dwelling)1 This number of movements is not expected to cause any impact on
the existing traffic performance or safety on Wattle Street or at the intersection of Wattle Street and
Garnet Street.

The location of this driveway access to Wattle Street is within the envelope of the intersection of Wattle
Street and Wimmers Lane and while this location does not comply with the requirements of AS2890.1,
given the very low traffic volumes on the driveway and at this intersection and considering that there are
no other positions available for site access for this proposed site layout, this position is considered
acceptable.


                3.2        Site Access and Driveway Type
This driveway is considered to be a low volume residential access fronting a low volume local street and
hence, in accordance with AS2890.1 Table 3.1, the type of driveway facilities required is a Category 1
facility. For Category 1 facilities the minimum width requirement for the driveway and circulation
roadway is 3.0 metres. In this instance, as the driveway is located against the fence line, an additional
width or clearance to the fence of 300mm should be provided. The proposed driveway narrows from
approximately 3.6m at the property boundary to approximately 2.6 metres at the narrowest point mid-
way along the driveway. This has been done to achieve greater landscaping areas on the site and is not
considered to be detrimental to the safety or amenity of the operation of the driveway provided the
species used for landscaping will not restrict the driveway width or reduce sight lines in the future. The
swept path diagrams provided in Appendix B show vehicles can negotiate this driveway. The length of
this driveway is approximately 14 metres from the western property boundary to the parking apron at the
rear of the building as shown in Figure 2. The width of the proposed driveway is considered adequate.

The proposal provides for a 6.0 metre wide, two-way kerb crossover and driveway from the road to the
property boundary. It is expected that residents, if necessary, would be able to stop on the driveway and
wait for any vehicles exiting the complex. Similarly residents would be able to stop on the parking apron
behind the building to wait for any vehicles entering the complex. The swept path diagrams in Appendix
B show this arrangement. This arrangement is considered appropriate given the low volumes of traffic
expected to be using the driveway and the speeds at which they are expected to be travelling. For this
arrangement to operate successfully, however, it is necessary for vehicles approaching the driveway
from either direction to be able to see traffic approaching from the other direction and therefore a
parabolic traffic mirror should be installed in an appropriate position, generally, as shown on the plans.
Additionally, it is recommended that signs are provided at the holding bays to direct approaching drivers
to yield to other vehicles entering or leaving the property.

The driveway crossover should be constructed in accordance with Noosa Council Standard Drawings.




1
    Reference – RTA Guide to Traffic Generating Developments (Medium density residential)

www.roadpro.net.au                                                                                                            Page 7