Wednesday 26th March 2025
The Failure of the Traffic Impact Assessment (TIA) and EPA Conditions
The Traffic Impact Assessment (TIA) and EPA conditions regarding the proposed development use of Porters Bridge Road represent a disturbing failure of due diligence, a complete disregard for public safety, and an alarming lack of accountability. Rather than ensuring robust infrastructure planning, these assessments appear to be little more than rubber-stamped formalities that fail to address glaring safety risks, road deficiencies, and the inevitable degradation of vital transport corridors.
The TIA openly acknowledges that Porters Bridge Road does not meet the LGAT Standard Drawings (TSD-R02-v3) for a road carrying similar vehicle volumes and heavy vehicles. Yet, inexplicably, no significant mitigation measures are required to rectify this glaring non-compliance.
- Increased risk of side-swipe crashes due to insufficient road width is merely noted but not addressed.
- The Meander River bridge is functionally unsafe, supporting only one-way traffic with no signage or priority indicators, meaning head-on collisions will become inevitable as truck movements surge.
- Sharp curves with dangerously limited Sight Stopping Distance (SSD) will be even more treacherous with the massive influx of heavy vehicles, yet no corrective measures are mandated.
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| ABx trucks leaving Bald Hill Mine |
How can such a inadequate and high-risk road corridor be expected to handle an additional 102 vehicle movements per day—the majority being heavy trucks?
This is not traffic planning; it is reckless negligence.
2. The Inexcusable Neglect of Bridge Safety
The bridge on Porters Bridge Road, has not been assessed for its structural integrity under the increased load of heavy vehicles.
- Has any real structural analysis been done?
- What happens if a bridge fails under increased weight pressure?
- Why is there no requirement for the developer to contribute to bridge reinforcement?
If this bridge becomes structurally unsound, who pays the price? It will be ratepayers and local road users who will suffer the consequences.
The TIA itself acknowledges that:
- Existing potholes will worsen due to increased traffic loads.
- The road surface will deteriorate at a faster rate, posing even greater risks to everyday motorists.
- Existing road markings are already faded, increasing the likelihood of vehicles drifting into oncoming traffic.
Yet, there is no firm requirement for immediate road upgrades before the development begins. Instead, this project will further degrade the road while the responsibility for repairs falls squarely on the local Council and their ratepayers.
This neglect of regional infrastructure and an insult to every road user forced to endure the consequences of this oversight.
The so-called "traffic management measures" proposed are laughable in their inadequacy:
- The only recommendation regarding truck entry and exit is a suggestion that Truck & Dog Trailer Combinations only turn right into the site and left when exiting.
- There is no enforcement plan in place to ensure compliance, meaning heavy vehicles may still attempt unsafe right turns onto Porters Bridge Road.
- The "trucks crossing" sign has fallen over, and rather than ensuring it is replaced immediately, the issue is merely noted in passing.
This is not risking mitigation; it is a feeble, box-ticking exercise that provides no real safety assurance.
The EPA conditions and TIA completely disregard the impact of this development on:
- School buses, local farmers, and everyday residents who rely on these roads.
- Emergency response times, which will be significantly affected by increased congestion and heavy vehicle dominance.
- Noise, dust, and environmental degradation, which will intensify due to higher truck movements.
There is no meaningful consultation with the impacted communities. No plan for mitigating risk to local drivers, pedestrians, or cyclists. No strategy for ensuring emergency access when congestion increases or a fire burns.
Who pays for the inevitable road damage, structural failures, and safety upgrades? Certainly not ABx.
- There is no requirement for the developer to contribute financially to road maintenance despite being the primary cause of its degradation.
- There is no funding strategy to future-proof this road corridor, meaning the costs will fall to the already stretched council budget.
The weakness and ineffectiveness of the Traffic Impact Assessment and EPA conditions are undeniable. Instead of ensuring road safety, protecting public infrastructure, and holding developers accountable, these assessments rubber-stamp a high-risk, poorly planned project that will:
- Increase crash risks.
- Deteriorate vital infrastructure with no financial accountability.
- Jeopardise public safety.
- Ignore community and other road users concerns.


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