Clyde Road, Berwick – Selecting the best design
23 Aug 2019
Looking north across the intersection of Clyde Road and Enterprise Avenue (Artist impression only - subject to change)
Site investigations and engineering assessments have determined that the dangerous and congested level crossing at Clyde Road in Berwick will be removed by building a road underpass beneath the rail line.
A road underpass design will improve local connections for emergency services travelling to the nearby medical precinct, improve travel times for thousands of people going to local schools and tertiary institutes, and ease congestion for thousands of vehicles that travel through the level crossing every day.
The road underpass design will also minimise disruption to the Pakenham line, allowing it to stay open for most of the works. The road underpass design takes into consideration the current and future use of the area. It puts safety first, creating a safer environment by separating pedestrians and cyclists from traffic and the rail line.
We looked at a range of design solutions before determining that a road underpass was the best option. Other designs would have significant impacts to the area, in some instances take over a year longer to build, require compulsory acquisition of private property and relocation of major underground services, including the Longford gas main, which supplies gas to most of Melbourne.
This brochure explains the impacts of these other designs and the criteria we used to assess them.
Understanding the site
Each level crossing has its own set of characteristics to consider when preparing to remove it. Clyde Road is a main road where 22,000 vehicles travel through the level crossing each day.
At Clyde Road, the site is located near a growing residential, health and education precinct, and is located close to nearby freeways.
The Clyde Road level crossing is also next to the busy Berwick Station and Clyde Road bus interchange, and several important local businesses.
Underneath the level crossing are critical underground services that service the local community, including Longford gas line, telecommunications, sewer, power and water.
Environmental, technical and community considerations all contribute to determining a design solution.
Some of our key considerations in selecting a design solution are:
- disruption to train services
- impacts to motorists
- traffic movements
- local walking and
- cycling connections
- current and future use of
- surrounding land
- impacts to utilities and services
- access for emergency services
- compulsory land acquisition
- ground conditions
- environmental impacts
Impacts to the community are an important consideration. We assess the length of time each design requires the road and rail line to be closed and how this will impact local commuters.
Designs that were ruled out
Here is a summary of designs that were assessed and determined not suitable for the Clyde Road, Berwick level crossing.
Rail over road
Raising the rail line over the road would:
- impact commuters by shutting the Pakenham line between Pakenham and Dandenong for up to two months
- move the rail line closer to properties on the north * require the rail line to be elevated for nearly two kilometres
- take up to a year longer to build
- require Berwick Station to be relocated and temporarily closed for up to two months, causing further disruptions to commuters
Road over rail
A road bridge would:
- cut off direct access to Enterprise Avenue from Clyde Road
- require the compulsory acquisition of multiple local businesses
- make it very difficult to widen Clyde Road in the future
- have negative impacts to the Berwick Station car park, including the reduction of car spaces
- require significant road closures, impacting thousands of motorists.
Rail under road
A rail underpass would:
- impact commuters by shutting the Pakenham line between Pakenham and Dandenong for up to three months
- require major relocation of the Longford Gas Main, which supplies gas to most of Melbourne, causing further delays
- take up to a year longer to construct
- require temporary closure of Berwick Station for up to two months
- require significant relocation of underground services including: gas, telecommunications, sewer, power and water.
A hybrid design, with a slightly elevated rail and lowered road, would:
- require the rail line to be elevated for about one kilometre
- impact commuters through significant closures of the Pakenham line between Pakenham and Dandenong
- require significant road closures and longer construction time
- move the rail line closer to properties on the north.
- require significant relocation of services including: gas, telecommunications, sewer, power and water.
The best solution
Road under rail
A road underpass will:
- require the least amount of rail closures
- reduce disruption to motorists
- future proof the area to make sure future road and rail upgrades are possible
- avoid the compulsory acquisition of private property and businesses
- minimise disruption at Berwick Station by avoiding further disruption to the rail line
- create better local walking and cycling connections.
Key Impact Assessment
We applied the following key criteria to each design outlined below. Assessing these allows us to determine which designs are feasible for each site.
criteria to meet
|Rail over road||Road over rail||Rail under road||Hybrid||Road under rail|
|Property acquisition||Property acquisition required||Property acquisition required||No property acquisition required||No property acquisition required||No property acquisition required|
|Impact to local homes and businesses||Impacts||Impacts||No Impact||Impacts||Minor impact|
|Construction impacts||Major||Major||Major||Medium||Least impact|
Up to two month rail closure and temporary closure of Berwick Station for up to two months
Compulsory land acquisition and major road closure, impacting thousands of motorists
Up to three month rail closure and temporary closure of Berwick Station for up to two months
Significant impacts to both road and rail, causing major disruption to both commuters and residents
Less impactful road and rail closures
|Overall assessment outcome||Not feasible||Not feasible||Not feasible||Not feasible||Best design|
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