RFI - Traffic engineering advice

4. Assessment
An assessment of sight distance requirements at the proposed access driveway
location has been undertaken in accordance with Australian Standards for Off‐street
Parking Facilities AS2890.1. The sight distance requirement for a domestic property
access driveway (serves less than 3 dwellings) with a road frontage speed of 60km/h
according to Figure 3.2 of AS2890.1 is 55m. The driveway complies with the
requirements of AS2890.1

The driveway location is located 20m from the exiting lane on the roundabout and
complies with intersection separation distance from a roundabout.

Consideration was given to an entry and exit driveway on Poinciana Avenue, however
the closeness to the roundabout and the risk of weaving across lanes to undertake a
U‐turn is considered a safety concern and was not investigated further.

5. Conclusion
In conclusion, an assessment of the access arrangements for the proposed
development has been undertaken with consideration to Council requirements, and
Australian Standards AS2890.1.

Lot 1 will remain in its current form, with entry via Poinciana Avenue and exit direct to
the roundabout, as constructed by Council as part of the roundabout works in 2011.
However, it should be noted that the current dwelling has two units and the proposal
is to demolish the building and construct just one dwelling on Lot 1, reducing the trip
generation from this driveway.

The proposed driveway to Lot 2 on the southern boundary has been reviewed. The
sight visibility from the access has been assessed in accordance with Australian
Standards AS2890.1 for access driveways. Sight visibility to the east and west complies
with the sight distance requirements for a domestic property access driveway with a
frontage speed limit of 60km/h as provided in AS2890.1.

Consideration should be given to ensure all access movements to Lot 1 and Lot 2 are
forward in and forward off the site and adequate provision is made for visitor
parking.

Should you require any further information please do not hesitate to contact me.


Yours faithfully



Dianne Hayes
B. Eng (Civil) RPEQ 7086
Hayes Traffic Engineering                                                 ABN 98 615 073 565
221159 Poinciana Ave SISD Access Report                                           Page 4 of 6