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This paper examines the implications of two geospatial tool systems, developed by the “Greening the Greyfields” research, to support local governments in encouraging community engagement in the process of decision-making for the rebuild. The two tools, Envision and ESP, allow the identification of areas of reconstruction priority, and modelling different reconstruction scenarios with 3D visualisation and precinct design assessment. The main expected outcome is that these tools will support the local government to expand the communication with stakeholders and communities towards shared decision-making amidst the different counterparties involved in the rebuild process. The 2010/2011 Christchurch earthquakes, with 7.1 Mw and 6.3 Mw magnitudes caused 185 fatalities and an unprecedented damage throughout the city and region. An estimated 91% of Greater Christchurch dwellings suffered some type of damage, in which approximately 7.5% of buildings collapsed or required demolition. The aftermath was particularly severe in suburban areas near the sea, rivers, and in the central city where approximately 90% of buildings required demolition. Consequently, there has been considerable pressure on housing and commercial property markets. Moreover, horizontal infrastructure was severely damaged, with water mains, sewer lines, and roads needing repairs that are estimated to cost approximately 1.5 billion NZD. Subsequently, Christchurch suffered an unparalleled population and activity movement throughout the city and Canterbury region, which prompted significant social and economic transformation. The need to obtain support for decision-making and integrate communities in the rebuild process, created the chance for new geospatial tools to be trialed in Christchurch. [ABSTRACT FROM AUTHOR]

Abstract: This research assessed the comparative risk associated with exposure to traffic pollution when travelling via different transport modes in Christchurch, New Zealand. Concentrations of PM1, UFPs and CO were monitored on pre-defined routes during the morning and evening commute on people travelling concurrently by car, bus and bicycle. It was found that car drivers were consistently exposed to the highest levels of CO; on-road cyclists were exposed to higher levels of all pollutants than off-road cyclists; car and bus occupants were exposed to higher average levels of UFP than cyclists, and travellers were occasionally exposed to very high levels of pollution for short periods of time. PM10 and PM2.5 were found to be poor indicators of exposure to traffic pollution. Studying Christchurch adds to our understanding as it was a lower density city with limited traffic congestion compared most other cities previously studied. [Copyright &y& Elsevier]