Transport Canberra and City Services

Sternberg Crescent, Wanniassa

Residential Street Improvement Program
Sternberg Crescent, Wanniassa – June 2014 update


The ACT Government has now completed a study of the traffic conditions on Sternberg Crescent and surrounding streets in Wanniassa. The aim of this project was to identify community concerns, develop options to improve traffic conditions and recommend a program of works.

The study involved a technical analysis of traffic speed, volume and crash data along Sternberg Crescent and its surrounding streets. Consultation with the local community was an important part of the study.
A traffic management scheme has now been finalised to improve traffic conditions in the area.

Project background

The residents of Sternberg Crescent and other road users have written to Ministers, members of the ACT Legislative Assembly and Roads ACT regarding their concerns about traffic volumes, speeding and other road safety and amenity issues on this street.

Roads ACT has developed the Traffic Warrant System (TWS) to identify the need for traffic management and road safety measures on residential streets. This system takes into consideration the total traffic volume, traffic speed, crash history and land use of each street to provide a ranking for collector roads. Sternberg Crescent in Wanniassa ranked relatively high on the 2013 TWS.

Stage 1 Community consultation/feedback

In September/October 2013 Roads ACT collected feedback about issues of concern from residents of Wanniassa and the wider community.

The feedback received included 555 survey responses and three email / phone submissions, with 299 people attending the information sessions.

Key areas of concern included:

  • intersection safety (74% of respondents), particularly at the intersections of Comrie Street/Sternberg Crescent, Ashley Drive/Sternberg Crescent, McBryde Crescent/Ashley Drive, Langdon Avenue/Sternberg Crescent. Congestion during peak hours at these intersections was also an issue
  • speeding (72% of respondents), particularly on Sternberg Crescent, Langdon Avenue, Wheeler Crescent, Fincham Crescent, around the Erindale shopping precinct and confusion over speed limits on McBryde Crescent
  • poor visibility (44% of respondents), especially for trees and underpass railings at numerous points. Particular visibility issues at the intersection of Maltby Circuit/Sternberg Crescent
  • pedestrian crossing points (42% of respondents), especially the need for a safer crossing near Comrie Street, and generally to access Erindale shops; condition of underpasses to cross Sternberg; need for a crossing near bus stop at Fincham Crescent and Sternberg Crescent; requests for pedestrian crossings at the Wanniassa Junior School Campus and Trinity Christian School.

Speeding, intersection safety and pedestrian safety were identified as requiring immediate solutions.

Comments received also indicated that there is general support for the introduction of traffic management measures on Sternberg Crescent and surrounding streets.

For more information view a Summary of the Sternberg Crescent Stage 1 consultation responses (Word 116KB) (PDF 279KB)

Technical analysis

The technical analyses of traffic speed, volumes and crashes showed that:

  • there is a degree of speeding throughout the suburb, with the 85th percentile speeds* in excess of the speed limit on many streets including:
    • Sternberg Crescent (66 km/h in a 60 km/h zone)
    • Wheeler Crescent (68km/h in a 60 km/h zone)
    • Longmore Crescent (69km/h in a 50 km/h zone)
    • Fincham Crescent (69km/h in a 50 km/h zone)
  • traffic volumes are moderately high (9,400 vehicles per day) on the section of Sternberg Crescent near the Erindale Shopping Centre. This makes it difficult to turn into and out of side streets (Ashley Drive, McWhae Circuit, Comrie Street and Langdon Avenue) during peak periods
  • visibility is restricted at the Sternberg Crescent intersections with Fincham Crescent, Langdon Avenue and Maltby Circuit
  • the intersection of Ashley Drive/McBryde Crescent (38 crashes) and the Sternberg Crescent intersections with Langdon Avenue (21 crashes), Comrie Street (20 crashes) and Ashley Drive (15 crashes) have experienced the most crashes in the last five years. Two fatalities (one pedestrian and one cyclist) also occurred on this stretch of Sternberg Crescent.

*The speeds at which 85% of the surveyed traffic is travelling at or below.

Proposed traffic management treatments

Potential traffic management treatments were developed to address the feedback received from the community as well as the results of the technical analyses of traffic data.
The objectives of the proposed scheme were to:

  • reduce travelling speeds
  • improve safety at intersections
  • improve pedestrian safety.

The technical principles behind this scheme were:

  • to reduce speeds all-day every day (24/7), it is necessary to place physical devices on the road so that motorists must slow down
  • devices must be spaced evenly along the road to achieve the desired travel speed at, or below, the posted/default speed limit
  • different devices serve different purposes, have different levels of effectiveness, and vary in construction cost. However, the aim of all these devices is to reduce speeding and encourage through-traffic to use the surrounding arterial roads
  • slower speeds and devices which create safer crossing opportunities for pedestrians would also help to improve the safety and amenity of residents.

The Wanniassa concept plan (PDF 5.7MB) shows the proposed scheme*.

*This concept plan shows a map of the proposed treatments. If you are unable to access the information in this map please contact Access Canberra on 13 22 81 to request an alternate version.

For more information on the proposed treatments view a summary of the proposed treatments.

Stage 2 Community consultation/feedback

The community was consulted again in December 2013/January 2014 to seek views on the proposed treatments for improvement.

Over 310 people participated in this consultation process. The feedback received included 276 survey responses, 13 email submissions and 31 people also attended the public display/information sessions.

This feedback included:

  • strong support for the proposed traffic calming measures (88% of respondents)
  • strong preference for Option 1 (67% of respondents)
  • support for a speed limit of 50 km/h over full length of McBryde Crescent
  • support for pedestrian refuges, especially near schools and shops.

For more information view a Summary of the Sternberg Crescent Stage 2 consultation responses (Word 136KB) PDF (316KB)

Final master plan

In view of the results of the technical analysis and the feedback received from the community, and considering the technical effectiveness of the proposed treatments, the final scheme has been modified. It now incorporates some alternative treatments suggested and supported by the community.

It is important to note that the final scheme is an overall 'master plan' for the area and that not all proposed devices will be installed at once. The master plan will guide the implementation of the scheme over a number of years. The works will be undertaken as funding becomes available.

The locations of proposed treatments shown on the map are indicative only, and the exact locations, as well as the detailed design of treatments, will be determined before the implementation stage.

The Wanniassa master plan (PDF 1.5MB) shows the final scheme*.

*This plan shows a map of the final scheme for improvements. If you are unable to access the information in this map please contact Access Canberra on 13 22 81 to request an alternate version.

Priorities and staging

Priorities have been assigned to the proposed treatments based on the results of the technical analysis and the feedback from the community.

An evaluation of the effectiveness of Priority 1 treatments will take place six months after their implementation. The evaluation will include a technical analysis of the scheme's impacts and the residents' views of the extent to which the stated objectives were achieved. Further implementation of Priority 2 and 3 treatments will depend on the results of this evaluation.

For more information view the Wanniassa Priority 1 treatments (PDF 1.5MB)*.

*This plan shows a map of the Priority 1 treatments. If you are unable to access the information in this map please contact Access Canberra on 13 22 81 to request an alternate version.

The Priority 1 treatments are summarised below.

Sternberg Crescent

  • Roundabout at intersection with Langdon Avenue.
  • Roundabout at intersection with Ashley Drive.
  • Remove tree(s) at Maltby Circuit.
  • Enhance street lighting on dual carriageway section.
  • Pedestrian refuge in the vicinity of the Wanniassa Junior School Campus.

McBryde Crescent

  • Lower speed limit from 60km/h to 50km/h between Ashley Drive and Amsinck Street.
  • Install '50km/h' speed limit signs at the Ashley Drive end.

Install '50km/h unless otherwise signposted' signs on:

  • Langdon Avenue at Athllon Drive end.
  • Sternberg Crescent at Sulwood Drive end.
  • Laurens Street at Taverner Street end.

Install '50km/h' speed limit signs on

  • Forlonge Street after Wheeler Crescent.
  • Fincham Crescent after Wheeler Crescent.
  • McBryde Crescent at Ashley Drive end.

For more information on the final scheme and priorities for implementation view the Executive Summary of the Sternberg Crescent report (Word 362KB)  PDF (311KB)

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We acknowledge the Traditional Custodians of the ACT, the Ngunnawal people. We acknowledge and respect their continuing culture and the contribution they make to the life of this city and this region.

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