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Mal Kains - Brookfield Rail - Major freight occurrence (WA)
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Mal Kains - Brookfield Rail - Major freight occurrence (WA)

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Mal Kains delivered the presentation at 2014 Major Rail Occurrence Forum (Derailments). …

Mal Kains delivered the presentation at 2014 Major Rail Occurrence Forum (Derailments).

The RISSB Major Rail Occurrence Forum (Derailments) has been designed to build on and continue the analysis of major occurrence reports and to seek Industry learning from them. By reviewing major occurrence reports, Rail Organisations have the opportunity to learn from the lessons without having to suffer the same occurrence.

For more information about the event, please visit: http://www.informa.com.au/derailments14

Published in: Business, Technology

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  • 1. SEVERE WEATHER EVENT DERAILMENT AT SALMON GUMS WA Presented by Mal Kains
  • 2. OVERVIEW OF THE OCCURRENCE On Monday 20 May 2013, loaded iron ore train 2415 operated by AWR (Aurizon) was travelling between Beete and Salmon Gums on the Esperance Railway. The train consisted of 160 wagons and four locomotives. It was 1,793m in length with a mass of 14,160 tonnes. At 1903 hours the train encountered a wash away and derailed 28 wagons at 263.5km. There were no injuries. Combined rolling stock and infrastructure damage was estimated at more than $5M including 24 destroyed iron ore wagons. 2
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  • 7. 7
  • 8. FLOOD DAMAGE TO TRACK 8
  • 9. FLOOD DAMAGE TO TRACK 9
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  • 14. PROBABILITY The statistical probability of this occurring was less than 1%. 14
  • 15. CAUSE An intense low pressure system resulted in a line of thunderstorms passing over the Esperance Railway north of Salmon Gums in a phenomenon known as ‘training’. The severe weather event was brief and localised, involving a very high rainfall rate of 150mm/hr occurring for approximately 30 minutes, which delivered a significant amount of water to the local catchment. Within one hour of the storm, flash flooding caused severe damage to the track formation. 15
  • 16. According to official BoM data, this severe weather event never happened! 16
  • 17. Weather radar 17
  • 18. Lightning data 18
  • 19. THUNDERSTORM DETECTION Weather radar detects water molecules in the atmosphere to infer rainfall intensity. However weather radar has limitations and can be unreliable for detecting and monitoring thunderstorms. It’s not currently possible to identify high rainfall events when they occur in a localised area, away from official weather monitoring sites. Accurate detection and monitoring of thunderstorms can be achieved by using lightning strike data. 19
  • 20. Learnings •  Understanding localised severe weather events •  Limitations of BoM weather (rainfall) data •  Limitations of weather radar •  Alternative methods for monitoring thunderstorms 20
  • 21. QUESTIONS? 21

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