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What happened

On 11 October 2014, GWA train 7MD3 departed Muckaty, NT for Berrimah Freight Terminal (Figure 1). Measuring 977 m in length, with a gross weight of 6924 t, the train was crewed by a driver and co-driver, and consisted of two locomotives, crew car and 78 wagons loaded with manganese ore.

Figure 1: NT rail network map

Figure 1: NT rail network map
Source: Geoscience Australia annotated by ATSB.

At about 0100[1] on 12 October 2014, train 7MD3 passed through Katherine at a speed of 80 km/h. As the train passed over the Novis Quarry Road level crossing, the co-driver noticed a white car alongside the track. Soon after, the driver saw a white light being waved near the track further ahead and immediately applied full train brake.

About 6 seconds later, as train 7MD3 rounded a bend, the driver saw a green utility road vehicle in the middle of the track immediately before the Katherine River Bridge. The driver made an emergency application of the train brake and sounded the locomotive horn.

At about 0102, the lead locomotive of train 7MD3 struck the utility vehicle at a speed of about 70 km/h. The train crew believed that the impact had derailed the locomotive and they were about to fall off the bridge and into the Katherine River. While the road vehicle became lodged under the lead bogie, the locomotive and the trailing wagons remained on track. The train travelled approximately 500 m further (Figure 2) before finally coming to rest atop a culvert bridge, with the damaged vehicle hanging precariously over the right side of the bridge (Figure 3).

Figure 2: Collision and resting point

Figure 2: Collision and resting point

The co-driver contacted Train Control and reported the collision while the driver went to the crew car to ensure the wellbeing of the other train crew before all three returned to the lead locomotive. One of the crew inspected the road vehicle and ascertained that no one was trapped inside.

Northern Territory Police officers attended the scene and provided assistance to all four crew members. Neither the driver of the vehicle nor any of the train crew was injured in the collision, although one member of the train crew was taken to hospital as a precautionary measure. All crew members were relieved from duty.

Figure 3: Vehicle position post collision

Figure 3: Vehicle position post collision
Source: Northern Territory Police

Train 7MD3 remained in situ while GWA personnel inspected the site and ensured the safety of the train and the track infrastructure. During the subsequent day, the train was moved back off the bridge and the remains of the vehicle extracted from under the locomotive bogie. At 1450 on 12 October 2014, Train 7MD3 recommenced its journey and continued to Berrimah Freight Terminal with a new train crew.

The driver of the vehicle was interviewed by the Northern Territory Police. During the interview, the driver informed the interviewing officers that he had been attempting to traverse the track just west of town when his car became stuck. Upon realising the approach of a train he had attempted to warn the train by flashing a torch.

ATSB comment

The point where the road vehicle attempted to traverse the railway did not contain any structure that resembled a level crossing, or any other provisions for road vehicles to safely cross the track. Evidence showed that in the attempt to traverse the rail line, the driver entered the rail corridor and mounted the east side of a steep embankment topped by the ballast formation supporting the rail track. The vehicle’s front wheels subsequently ‘hung’ on the east rail, such that its chassis rested on the track ballast and embankment with the rear wheels only lightly contacting the ground and unable to provide sufficient tractive effort.

There were a number of vehicle level crossings and road overpasses near Katherine, the closest being Novis Quarry Road, less than 1 km from where the road vehicle attempted to traverse the track.

While there is risk of injury or death to road vehicle occupants in the event of a collision with a train, there is also a very serious risk of injury or death to train crew and passengers in the likely event the train subsequently derails. At this location, derailment could have resulted in a train (freight or passenger) falling many metres into the Katherine River.

Safety message

This occurrence highlights the very significant risk of injury, death and serious damage that is associated with road vehicle operators attempting to cross railway tracks in areas other than designated level crossings. Risks are not confined to the road vehicle and occupants – there is also a high likelihood of train derailment after any track collision, with significant associated risks to the train crew, passengers, freight and infrastructure.



[1]     The 24 hour clock is used in this report to describe the local time of day, Central Standard Time (CST).

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General details
Date: 12 October 2014 Investigation status: Completed 
Time: 0102 CST Investigation type: Occurrence Investigation 
Location   (show map):Katherine  
State: Northern Territory  
Release date: 20 January 2015 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Train details
Line operator: Genesee & Wyoming Australia 
Train operator: Genesee & Wyoming Australia 
Train registration: 7MD3 
Type of operation: Freight - Ore 
Sector: Freight 
Damage to train: Substantial 
Departure point:Muckaty, NT
Destination:Darwin, NT
 
 
 
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Last update 26 February 2015