Critical infrastructure networks are highly relied on by society such that any disruption to service can have major social and economic implications. Furthermore, these networks are becoming increasingly dependent on each other for normal operation such that an outage or asset failure in one system can easily propagate and cascade across others resulting in widespread disruptions in terms of both magnitude and spatial reach. It is the vulnerability of these networks to disruptions and the corresponding complexities in recovery processes which provide direction to this research. This thesis comprises studies contributing to two areas (i) the modelling of national scale in-terdependent infrastructure systems undergoing major disruptions, and (ii) the tracking and quantification of infrastructure network recovery trajectories following major disruptions. Firstly, methods are presented for identifying nationally significant systemic vulnerabilities and incorporating expert knowledge into the quantification of infrastructure interdependency mod-elling and simulation. With application to the interdependent infrastructures networks across New Zealand, the magnitudes and spatial extents of disruption are investigated. Results high-light the importance in considering interdependencies when assessing disruptive risks and vul-nerabilities in disaster planning applications and prioritising investment decisions for enhancing resilience of national networks. Infrastructure dependencies are further studied in the context of recovery from major disruptions through the analysis of curves measuring network functionality over time. Continued studies into the properties of recovery curves across a database of global natural disasters produce statistical models for predicting the trajectory and expected recovery times. Finally, the use of connectivity based metrics for quantifying infrastructure system functionality during recovery are considered with a case study application to the Christchurch Earthquake (February 22, 2011) wastewater network response.
This section considers forms of collaboration in situated and community projects embedded in important spatial transformation processes in New Zealand cities. It aims to shed light on specific combinations of material and semantic aspects characterising the relation between people and their environment. Contributions focus on participative urban transformations. The essays that follow concentrate on the dynamics of territorial production of associations between multiple actors belonging both to civil society and constituted authority. Their authors were directly engaged in the processes that are reported and conceptualised, thereby offering evidence gained through direct hands-on experience. Some of the investigations use case studies that are conspicuous examples of the recent post-traumatic urban development stemming from the Canterbury earthquakes of 2010-2011. More precisely, these cases belong to the early phases of the programmes of the Christchurch recovery or the Wellington seismic prevention. The relevance of these experiences for the scope of this study lies in the unprecedented height of public engagement at local, national and international levels, a commitment reached also due to the high impact, both emotional and concrete, that affected the entire society.
This paper analyses the city of Christchurch, New Zealand, which has been through dramatic changes since it was struck by a series of earthquakes of different intensities between 2010 and 2011. The objective is to develop a deeper understanding of resilience by looking at changes in green and grey infrastructures. The study can be helpful to reveal a way of doing comparative analysis using resilience as a theoretical framework. In this way, it might be possible to assess the blueprint of future master plans by considering how important the interplay between green and grey infrastructure is for the resilience capacity of cities.
A document which describes SCIRT's discoveries and processes regarding archaeological finds on worksites.
A report which details the archaeological investigations carried out during the course of SCIRT project 10952, wastewater renewal work on Tuam Street.
A document which describes SCIRT's approach to ensuring zero harm during its five and a half year programme of work.
A document which outlines SCIRT's post-earthquake asset assessment process.
A document which outlines how SCIRT prioritised the 634 construction projects within its programme of work.
A map showing the actual construction start dates.
A document which discusses the importance of the ECI process at SCIRT.
A document which describes how SCIRT led the co-ordination of its huge repair programme with those of other utilities.
A document which illustrates the impetus for SCIRT's zero harm programme, the parties involved, initiatives undertaken and outcomes achieved.
A document which outlines SCIRT's best practice approach to recruitment and training.
A document which outlines SCIRT's use of peak performance coaches.
A document which describes the process that SCIRT took to fill its operational workforce gap.
A document which describes how SCIRT's governance structure was set up and developed in response to the many challenges of the horizontal infrastructure rebuild.
A document which describes the formation of SCIRT.
A document which describes best practice for dewatering guidelines.
A report which details the archaeological monitoring carried out during the course of SCIRT project 11136, repairs to the Gloucester Street bridge.
A document which discusses the importance of the Alliance Objectives to the operation of SCIRT.
A document which describes the process that SCIRT took to restore the Bridge of Remembrance and Memorial Arch.
An article that explains the innovative work of SCIRT in a post-disaster environment.
A document which lists the awards won by SCIRT.
A document which outlines how SCIRT and the New Zealand Red Cross worked together to aid the recovery of Christchurch.
A document which provides simple, easy to understand environmental advice and guidance for civil construction contractors.
A document which describes SCIRT's approach to creating business systems to aid the rebuild of horizontal infrastructure.
A document which describes the SCIRT estimates process and outcomes.
A document which describes development and success of the SCIRT commercial model.
A document which describes the process that SCIRT took to repair the Sumner Road retaining wall - stage 4.
A document which describes the processes that SCIRT took when repairing some of Christchurch's heritage bridges.
