The NSW Government is investigating Pacific Highway upgrades as part of its $300 million Urban Roads Pinch Point Program, which aims to reduce congestion and improve travel times on Sydney's busiest corridors.
Roads and Maritime Services is delivering this project to ease congestion, deliver reliable travel times and improve safety for road users on the Pacific Highway between Turramurra and Wahroonga.
FAQs - September 2018
Pacific Highway between Turramurra and Wahroonga
The Pinch Point Program provides low cost, high benefit proposals to improve congestion on Sydney’s roads today.
A pinch point is a traffic congestion point, either at an intersection or on a short length of road, where a traffic bottleneck exists. They cause traffic build-up and travel delays at these spots and on the wider road network.
Currently, northbound motorists are experiencing heavy congestion, poor travel times and long delays when travelling between Turramurra and Wahroonga, particularly during the afternoon peak period. This situation is worsened by the Pacific Highway northbound lanes dropping from three lanes to two lanes along this section of the corridor.
Roads and Maritime propose to provide more efficient, safer and reliable travel times by widening the road to provide three continuous lanes in the northbound direction whilst maintaining the three existing southbound continuous lanes along this section of the corridor.
Road widening, and other improvements, would provide significant benefits, particularly in the afternoon peak for motorists travelling northbound along the Pacific Highway.
Key benefits include:
- northbound travel time savings
- improved traffic flow and efficiency at the intersections
- reduced queue lengths and delays at the intersections
- improved road safety along the corridor through removal of right turn movements at Finlay Road, Marshall Avenue and Coonanbarra Road
- improved pedestrian and road user safety at the intersection of the Pacific Highway and Redleaf Avenue by removing the southbound left turn slip lane and providing a pedestrian refuge on Redleaf Avenue
- improved road safety at the intersections of the Pacific Highway at Fox Valley Road, and at Coonanbarra Road and Redleaf Avenue, by realigning the curve of the road and traffic lanes.
Roads and Maritime is strongly committed to working closely with Ku-ring-gai Council and other stakeholders during all stages of the project. Working with Ku-ring-gai Council ensures we achieve the best outcomes for the Pacific Highway corridor work and the community. We have consulted with Ku-ring-gai Council during planning and will continue to work with Council as the project progresses.
Road widening would require strip adjustments to some properties on the northbound side of the Pacific Highway, between Turramurra and Wahroonga. Roads and Maritime are in contact with all potentially impacted property owners. We will continue to work with potentially impacted property owners as the project progresses.
The road widening works would impact some local and State heritage listed properties along the northbound side of the Pacific Highway.
Roads and Maritime is strongly committed to working closely with Ku-ring-gai Council and the Office of Environment and Heritage (OEH) to reduce the potential impacts on any local or State heritage listed properties that could be impacted by this project. We will work with Ku-ring-gai Council and the OEH during all stages of the project.
Road widening works would primarily impact roadside vegetation and trees on the northbound side of the Pacific Highway. The impacted vegetation and trees would be on public land (within the existing road corridor and council owned land) and private properties where strip adjustments would be required.
Roads and Maritime has developed the proposed design to minimise the loss of vegetation and trees where possible. A Review of Environmental Factors (REF) is being prepared to assess the potential environmental impacts of the proposal (including the removal of roadside vegetation and trees) and outline measures to manage and mitigate these impacts, should the project proceed.
To offset the removal of vegetation and trees, landscape planting plans would be prepared in consultation with the impacted property owners and implemented following construction. Further investigations will be done in the project design phase to determine the extent of landscaping works required to replace any vegetation or trees that would be removed as a result of the potential road upgrades. This work will be done in consultation with impacted property owners, utility providers, relevant state government agencies and Ku-ring-gai Council.
Indicative mitigation planting has been included on visualisations (PDF, 8.6Mb) to show suggested replanting options along the potentially impacted areas of the road corridor following construction.
The project is currently in design phase. Although we may not have the capacity to fund all proposed Pacific Highway upgrades, our decision will be informed by community and stakeholder feedback.
To further inform potential corridor upgrade planning and development, we will also carry out additional investigation work at the intersections of the Pacific Highway and Fox Valley Road and the Pacific Highway and Coonanbarra Road between September and November 2018.
We will decide how to proceed with potential works once all relevant information has been collated.
The community is advised prior to work commencing on any Roads and Maritime project.
The project is currently in design phase. Community consultation feedback will inform progression of the project, along with project design requirements. We will decide how to proceed with potential work once all relevant information has been collated.
It is anticipated that any construction work would commence early 2020, and be completed by June 2021.
Further communication will be provided to the community and stakeholders as the project progresses.
Finlay Road primarily services the surrounding residential area and Warrawee Public School community. Widening the Pacific Highway to provide three continuous northbound lanes at the intersection of the Pacific Highway and Finlay Road would require vehicles turning right into, or out of, Finlay Road to cross three lanes of northbound traffic compared to the current situation with two lanes.
The crash history data for the Finlay Road intersection in the five-year period between 1 January 2011 and 31 December 2016 shows that there were five reported crashes at the intersection. The introduction of the right turn bans are expected to reduce crash rates at this intersection, particularly for vehicles turning right out of Finlay Road onto the Pacific Highway.
Based on traffic counts collected in March 2017, the number of vehicles turning right out of Finlay Road was insignificant (one vehicle per hour in both the AM and PM peaks). In general, these vehicles can currently find a suitable gap to turn within half a minute in both peaks. As a result of traffic growth on the Pacific Highway, delays could potentially increase to two minutes in both peaks in 2027.
Based on the traffic counts collected in March 2017, the highest number of vehicles turning right into Finlay Road was 60 vehicles per hour, during the AM peak. In general, these vehicles can currently find a suitable gap to turn within half a minute in both peaks. As a result of traffic growth on the Pacific Highway, the delays could potentially increase to approximately 40 seconds in both peaks in 2027.
The proposed right turn bans at the Pacific Highway and Finlay Road intersection would see affected motorists reroute via Fox Valley Road or Kissing Point Road. The impacts, in terms of travel distance and time on a typical weekday during the AM and PM peaks, are shown below.
Right turn ban from Finlay Road onto Pacific Highway southbound - Alternate traffic routes via Fox Valley Road (1) and Kissing Point Road (2).
Right turn ban from Pacific Highway southbound into Finlay Road - Alternate traffic routes via Fox Valley Road (1) and Kissing Point Road (2)
Marshall Avenue is a cul-de-sac, which services Marshall Avenue residents only.
The crash history data for the intersection in the five-year period between 1 January 2011 and 31 December 2016 shows that there were 8 reported crashes at the intersection. The introduction of a right turn ban is expected to reduce crash rates at this intersection.
Based on the traffic counts collected in March 2017, the number of vehicles turning right out of Marshall Avenue onto the Pacific Highway southbound was found to be insignificant (three vehicles per hour in the AM peak and two vehicles per hour in the PM peak). In general, these vehicles can find a suitable gap to turn within half a minute in the 2017 AM peak and within 40 seconds in the 2017 PM peak. The delays in the AM peak would remain the same in 2027 while the delays in the PM peak would increase to 47 seconds in 2027.
The proposed right turn ban from Marshall Avenue onto the Pacific Highway southbound would see affected vehicles reroute via Fox Valley Road. The impacts, in terms of travel distance and time on a typical weekday during the AM and PM peaks, are shown below.
Coonanbarra Road primarily services the surrounding residential and school community.
Currently the right turn movement from the Pacific Highway into Coonanbarra Road is an unprotected filter movement and considered unsafe.
Based on the traffic counts collected in March 2017, only a small number of vehicles were turning right into Coonanbarra Road from the Pacific Highway during both peaks (13 vehicles in the AM peak and 16 vehicles in the PM peak).
Banning the right turn movement from the Pacific Highway into Coonanbarra Road would see affected vehicles rerouted via Redleaf Avenue. As a result, this would increase the amount of right-turn movements into Redleaf Avenue by 23 vehicles in the AM peak hour and 15 vehicles in the PM peak hour. This would be a negligible increase given 163 vehicles currently turn into Redleaf Avenue in the AM peak and 155 vehicles in the PM peak.
The impacts, in terms of travel distance and time on a typical weekday during the AM and PM peaks, are shown below.
Right turn ban from the Pacific Highway northbound into Coonanbarra Road - Alternate traffic route via Redleaf Avenue.
The traffic flows on Finlay Road and Marshall Avenue do not meet the minimal warranted requirement for traffic light installation. Based on the traffic demand warrants a side, or minor, road would need to exceed 200 vehicles per hour in one direction for four hours to be considered for traffic light installation.
Based on the traffic counts collected in March 2017, the peak flow on Finlay Road is about 100 vehicles per hour in the westbound direction between 7.45am and 8.45am. Traffic flows are significantly lower at other times of the day.
Based on the traffic counts collected in March 2017, the peak eastbound flow on Marshall Avenue was about 30 vehicles per hour between 9.00am - 10.00am.
Therefore, there is insufficient traffic to consider traffic lights at Finlay Road or Marshall Avenue.
The addition of traffic lights in close proximity to each other increases total number of vehicle stops, and delays, on the traffic network which would remove the benefit of installing the additional lane.
Two sets of traffic lights close together is also a safety hazard where both sets of lights are visible to drivers.
The dedicated left turn lane from the Pacific Highway northbound into Fox Valley Road is an existing traffic condition, which would be maintained under the proposed Pacific Highway and Fox Valley Road upgrade work.
Based on the traffic counts collected in March 2017, the number of vehicles turning left from the Pacific Highway into Fox Valley Road is high during both peaks (about 400 vehicles in the AM and PM peak hour). The existing traffic flow supports the maintenance of the dedicated left turn lane due to the high volume of left turning traffic from the Pacific Highway northbound.
The provision of the northbound left turn lane into Fox Valley Road allows turning vehicles to safely decelerate or stop without impacting the flow of the through traffic providing improved traffic flow on the Pacific Highway. The left turn lane also stores vehicles when the pedestrian crossing is in use.
There would be noise and traffic and transport related impacts during the construction of these works (refer to further FAQs below for more details).
The project is currently in design phase. Community consultation feedback will inform progression of the project, along with the proposed project's aims and design requirements, before we decide how we will proceed with the potential Pacific Highway upgrades.
Roads and Maritime acknowledges that any planned works may cause inconvenience for a small proportion of local residents, pedestrians and road users during the construction stage.
There would be, however, significant benefits which would be experienced by the thousands of motorists that travel through this section of the Pacific Highway corridor on a daily basis.
There would be noise impacts during the construction of these works, particularly during night time work.
A Review of Environmental Factors (REF) is being prepared to assess the environmental impacts of the proposal and to outline the measures that must be taken in order to manage and mitigate these impacts. The REF will include consideration of construction noise impacts to surrounding properties and identify suitable mitigation measures to minimise noise impacts from construction activities. These mitigation measures would be based on best practice and Roads and Maritime's Construction Noise and Vibration Guidelines.
As part of the construction planning, the contractor would be required to prepare a Construction Noise and Vibration Management Plan to ensure noise and construction impacts are minimised and managed effectively.
There would be temporary traffic changes, including lane closures and change of speed limits, during construction to ensure the work zone is safe. This may affect travel times. We would work during night time wherever possible to minimise traffic impacts. As part of the construction planning, the contractor would be required to prepare a Traffic Management Plan to ensure traffic impacts are minimised and managed effectively.
Minor temporary pedestrian detours would be in place along sections of the footpath where road widening is proposed on the northbound side of the Pacific Highway. Where detours would be required on the footpath, signage and notifications would be provided to assist with these temporary changes.
Some bus stops on the northbound side of the Pacific Highway may need to be temporarily relocated or closed during construction. These changes would be communicated to the community via notification letters and signs posted at the bus stops. The project team would consult with the relevant transport providers, Ku-ring-gai Council and other stakeholders on any bus and transport changes.
We would keep the community updated on start of construction information including traffic and transport related changes that would result from start of work.
A Review of Environmental Factors (REF) is being prepared which assesses the potential environmental impacts of the proposal (both from construction and operation) and provides measures to manage and reduce these impacts based on best practice, expert advice and feedback from the consultation process.
Should the project proceed, a Construction Environmental Management Plan would be prepared before we start work to manage and mitigate the expected environmental impacts during construction based on the assessment and safeguards provided in the REF.
We would always notify local communities before starting a new section of work and before we do any out-of-hours work.
Roads and Maritime undertake noise modelling for all of our projects, to predict noise levels after a project opens to traffic. Noise modelling has been carried out to understand what the future operational noise levels would be (relative to existing noise levels) following the Pacific Highway upgrades.
Noise modelling results have confirmed that there would be a slight increase in operational noise received by adjoining properties directly impacted by the proposal (no more than 2 dBA), however not to a level that would require consideration of noise mitigation treatment under Roads and Maritime's Noise Mitigation Guidelines. A-weighted decibels, abbreviated dBA, is an expression of the relative loudness of sounds in air as perceived by the human ear.
For more information on Roads and Maritime's noise management policies and procedures, please refer to Reducing noise.
If you would like to receive community updates by email please advise the project team by email or telephone.
The Pinch Point project team can be contacted on 1800 572 004 (during business hours) or firstname.lastname@example.org.