CityLink Tulla Widening Project: The new freeway management system video and transcript
[Title: CityLink Tulla Widening Project: The new freeway management system]
The CityLink Tulla Widening Project is a $1.28b project jointly funded by the Victorian government, Transurban and the Commonwealth government.
The project will add extra lanes in each direction to ease congestion, boost reliability and improve safety on an essential part of Victoria's road network.
As part of the Citylink Tulla Widening Project, a new electronic freeway management system made up of ramp signals, overhead lane signs and on-road message boards are being installed along the freeway to help manage traffic flow, improve safety and create a smarter road.
The systems are controlled by sensors in the road that measure traffic flow.
We are also installing a number of new closed-circuit TV cameras along the freeway which will allow operators in the traffic management centres to view live traffic conditions.
These cameras together with automatic systems help us to better manage incidents and allow us to communicate information with drivers.
Traffic lights will be installed on entry ramps to the freeway. These lights will operate on an intelligent system that detects how busy the freeway is.
When the traffic lights are on, drivers will be alerted by flashing electronic signs as they approach the entry ramp. The lights will turn on when the freeway is really busy, generally during peak times.
One vehicle, each lane, per green light is allowed to enter the freeway. The traffic lights operate on a cycle that is determined by how heavy the freeway traffic is, with the lights generally changing every 4 to 12 seconds.
The lights work together with other ramps. This helps to manage the amount of cars entering the freeway, reducing the need for drivers to change lanes and slow down as much to let people in.
So, while drivers may need to wait a little longer on the ramp, they'll get better flowing traffic on the freeway and get to their destination sooner and safer.
On the freeway, drivers will notice new overhead electronic signs that show the speed limit. These signs are also used to show lane availability. When a lane is not in use, the overhead sign will display a cross or a merge arrow to indicate to drivers that they should merge out of a closing lane.
Lanes are generally closed for drivers due to an incident, like a breakdown or crash up ahead. It is important for drivers to obey the overhead signage and change lanes early if they see an arrow.
Speed limit signs may also be reduced during an incident which drivers can easily recognise by a flashing circle around the overhead lane use signs.
On-road electronic message boards will be installed along the freeway. These boards will be used to communicate information to drivers, such as travel times along the road and connecting destinations, upcoming road works, an incident or messages about connecting freeways.
So, as you can see, the road will be much smarter which will help keep traffic flowing better, manage traffic during incidents and give drivers more information so that they can make an informed choice about their travel.
[Speaker: Authorised by Victorian Government, 1 Treasury Place, Melbourne]
Page last updated: 24 January 2017