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Research papers, Lincoln University

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.

Videos, UC QuakeStudies

A video taken from a vehicle showing slow-moving heavy traffic following the 22 February 2011 earthquake. Note that the audio has been removed from this video for copyright reasons.

Images, UC QuakeStudies

A photograph of foot and vehicle traffic at the intersection of High Street and Manchester Streets taken shortly after the 22 February 2011 earthquake. The road has become congested by people trying to leave the city.

Images, UC QuakeStudies

A photograph of foot and vehicle traffic at the intersection of High Street and Manchester Streets taken shortly after the 22 February 2011 earthquake. The road has become congested by people trying to leave the city.

Images, UC QuakeStudies

A photograph of traffic leaving Lichfield Street taken from the intersection with Manchester Street shortly after the 22 February 2011 earthquake. A police officer is directing a crowd of people who have evacuated from buildings in the central city.

Images, UC QuakeStudies

A police officer directing traffic on the intersection of Worcester and Montreal Streets shortly after the 22 February 2011 earthquake. People can be seen on either side of the street, attempting to exit town and make their way home.

Images, UC QuakeStudies

A photograph of flowers in two road cones on a traffic island. On the anniversary of the 22 February 2011 earthquake, people were encouraged to place flowers in road cones as a way of honouring those who lost their lives during the earthquake.

Images, UC QuakeStudies

The badly-damaged Arts Centre, viewed from Rolleston Avenue. The turret has been removed from the building and secured to a platform on the footpath. Wire fencing has been placed around the building as a cordon and there are many road cones directing traffic.

Images, UC QuakeStudies

The badly-damaged Arts Centre, viewed from Rolleston Avenue. The turret has been removed from the building and secured to a platform on the footpath. Wire fencing has been placed around the building as a cordon and there are many road cones directing traffic.

Images, UC QuakeStudies

The badly-damaged Arts Centre, viewed from Rolleston Avenue. The turret has been removed from the building and secured to a platform on the footpath. Wire fencing has been placed around the building as a cordon and there are many road cones directing traffic.

Images, UC QuakeStudies

Heavy traffic at the corner of Moorhouse Avenue and Manchester Street as people attempt to leave the city centre shortly after the 22 February earthquake. The photographer comments, "Just after the aftershock settled on Tuesday afternoon, myself and colleagues fled our Tuam Street office to absolute devastation outside. We couldn't see more than a block in either direction due to the clouds of dust that had arisen from buildings that had just collapsed ... From here, we picked up our vehicles from the CCC car park and headed out to get out of the chaos to a position where we could check on loved ones ... As we got to Moorhouse Avenue, we found we had to quickly drive underneath [the Colombo Street overbridge]and carry on down to Brougham Street as the bridge was being closed at that moment. From Brougham, we headed back up towards Madras. The traffic lights were out and the intersection was chaos. Over the next couple of hours, we continued crawling through heavy traffic. Impressively, everyone was very orderly despite the feeling of panic and the continuing aftershocks. We chatted to others in other vehicles to exchange news and stopped to speak to a lady that had broken down following water in the engine after having driven hrough floods".