One landscape colour digital photograph taken 22 February 2017 showing bouquets of flowers and gifts left at the site of the former Canterbury Television building in memory of earthquake victims.
One landscape colour digital photograph taken 22 February 2017 showing a bouquet of flowers left at the site of the former Canterbury Television building by the Toyama Language School in memory of earthquake victims.
One landscape colour digital photograph taken 22 February 2017 showing a bouquet of flowers left at the site of the former Canterbury Television building by St John New Zealand in memory of earthquake victims and in appreciation of first responders.
One landscape colour digital photograph taken 22 February 2017 showing an earthquake memorial trellis at the site of the former Canterbury Television building.
One landscape colour digital photograph taken 22 February 2017 showing an earthquake memorial trellis at the site of the former Canterbury Television building.
One landscape colour digital photograph taken 22 February 2017 showing a bouquet of flowers and a note attached to an earthquake memorial trellis at the site of the former Canterbury Television building.
One landscape colour digital photograph taken 22 February 2017 showing a commemorative note to, and photograph of, Andrew Bishop attached to an earthquake memorial trellis at the site of the former Canterbury Television building.
One landscape colour digital photograph taken 22 February 2017 showing Karen Bishop attaching a windmill to an earthquake memorial trellis in memory of her son Andrew Bishop at the site of the former Canterbury Television building.
One landscape colour digital photograph taken 22 February 2017 showing a windmill attached to an earthquake memorial trellis by Karen Bishop in memory of her son Andrew Bishop at the site of the former Canterbury Television building.
Decision making on the reinstatement of the Christchurch sewer system after the Canterbury (New Zealand) earthquake sequence in 2010–2011 relied strongly on damage data, in particular closed circuit television (CCTV). This paper documents that process and considers how data can influence decision making. Data are analyzed on 33,000 pipes and 13,000 repairs and renewals. The primary findings are that (1) there should be a threshold of damage per pipe set to make efficient use of CCTV; (2) for those who are estimating potential damage, care must be taken in direct use of repair data without an understanding of the actual damage modes; and (3) a strong correlation was found between the ratio of faults to repairs per pipe and the estimated peak ground velocity. Taken together, the results provide evidence of the extra benefit that damage data can provide over repair data for wastewater networks and may help guide others in the development of appropriate strategies for data collection and wastewater pipe decisions after disasters.