Flagstaff Road is an arterial road in the southern suburbs of
Adelaide in
South Australia, Australia. It is one of the roads that carries commuter traffic between the city on the coastal plain and residential suburbs in the
Adelaide Hills.
Route
The northern end branches off of
South Road at
Darlington
Darlington is a market town in the Borough of Darlington, County Durham, England. The River Skerne flows through the town; it is a tributary of the River Tees. The Tees itself flows south of the town.
In the 19th century, Darlington underwen ...
at a traffic light intersection with
Marion Road opposite. Most of the road is in the suburb of
Flagstaff Hill. The southern end is a roundabout where Blacks Road crosses, and Happy Valley Drive continues from Flagstaff Road in the suburb of
Happy Valley. There are no major intersections along its length, only residential streets and local collectors.
The part of Flagstaff Road above the escarpment is a divided road with two lanes in each direction. The steepest section is a total of three lanes, with the middle lane
reversible to match peak traffic flow. At the bottom, there are two lanes feeding into it from the traffic lights, and a total of five lanes feeding traffic towards Marion Road and South Road (northbound).
History
The section with three lanes was upgraded to this standard in the 1980s to address increasing traffic due to expanding suburbs such as
Flagstaff Hill and
Aberfoyle Park
Aberfoyle Park is a suburb in the City of Onkaparinga in the state of South Australia. It is located in the southern suburbs of Adelaide, approximately 20 km from the city centre. Aberfoyle Park has a shopping mall called "The Hub", s ...
. The overhead lane direction indicators were upgraded from green arrows to white ones using newer technology in 2013. The 2019 South Australian state budget allocated to widen the road and remove the reversible lane; works commenced in early 2021, to be open to traffic by mid-2022.
Intersections
Flagstaff Road is entirely contained within the
City of Onkaparinga local government area
A local government area (LGA) is an administrative division of a country that a local government is responsible for. The size of an LGA varies by country but it is generally a subdivision of a State (administrative division), state, province, divi ...
.
References
{{Road infrastructure in Adelaide
Freeways and highways in Adelaide