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Rockfall in the Port Hills of Christchurch: Seismic and non-seismic fatality risk on roads
New Zealand Geographer ( IF 1.3 ) Pub Date : 2017-09-26 , DOI: 10.1111/nzg.12170
Stefan Unterrader 1, 2 , Peter Almond 2 , Sven Fuchs 1
Affiliation  

Numerous rockfalls released during the 2010–2011 Canterbury earthquake sequence affected vital road sections for local commuters. We quantified rockfall fatality risk on two main routes by adapting a risk approach for roads originally developed for snow avalanche risk. We present results of the collective and individual fatality risks for traffic flow and waiting traffic. Waiting traffic scenarios particularly address the critical spatial-temporal dynamics of risk, which should be acknowledged in operational risk management. Comparing our results with other risks commonly experienced in New Zealand indicates that local rockfall risk is close to tolerability thresholds and likely exceeds acceptable risk.

中文翻译:

基督城港口山的落石:道路上的地震和非地震死亡风险

2010 年至 2011 年坎特伯雷地震序列期间发生的大量落石影响了当地通勤者的重要路段。我们通过为最初为雪崩风险而开发的道路采用风险方法,量化了两条主要路线上的落石死亡风险。我们展示了交通流量和等待交通的集体和个人死亡风险的结果。等待交通场景特别解决了风险的关键时空动态,这应该在操作风险管理中得到承认。将我们的结果与新西兰常见的其他风险进行比较表明,当地的落石风险接近可容忍阈值,并且可能超过可接受的风险。
更新日期:2017-09-26
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