Developing a mapping tool to record how cleared land is managed and treated
Following the Christchurch earthquakes, Boffa Miskell was engaged by Christchurch Earthquake Recovery Authority (CERA) to establish interim land treatment options for managing cleared sites in the Port Hills residential red zone (RRZ). The development of a mobile application to help record and manage information on applied treatments was then developed to support CERA’s team while ‘in the field’.
The conditions and characteristics of the Port Hills RRZ are more complex than those encountered in the flat land residential red zones. Alternative treatments to those specified for the flat land areas needed to be proposed. The elevated nature of parts of the Port Hills RRZ meant that visibility from surrounding areas was a key consideration in the development of treatment options, along with ecological, cultural, historical, maintenance and safety factors. Critically, erosion control, spreading of noxious weeds, fire and land stability pose potential risks to adjoining land. The interim land treatment options, such as planting and erosion control methods, assist in managing the cleared red zone sites.
The Port Hills Interim Land Treatment Options Report included an overview of the issues and considerations within the Port Hills Red Zone, classification of land into four character categories and a prioritisation of areas which require higher levels of treatment and maintenance. Land treatment options were recommended for the treatment of the various categories and a specification for the delivery of the land treatments accompanied the report.
The Port Hills RRZ CERA team applied recommendations from the report to inform the decision making for the delivery of the interim land treatments for the entire Port Hills Red Zone. It became apparent that keeping record of the implemented land treatments and the existing onsite assets was a considerable administration issue. Boffa Miskell approached CERA with the concept to develop a mobile application ‘The App’ which utilised ArcGIS Online and Collector to map land treatments on site on an Ipad.
‘The App’ has the ability to display background information such as maps and aerials, from the initial report and a GIS location of where the CERA staff are on a red zone site. The user can simply draw proposed land treatments and existing site features into GIS while on site. The ability to draw into a live GIS file on site eliminates double handling of data, streamlines administration and provides a record of the asset in one central location.
The concept for ‘The App’ was developed by Boffa Miskell in collaboration with CERA. As CERA’s GIS service provider, North-South GIS provided knowledge on how ‘The App’ could be integrated into the existing CERA GIS Webmap programmes. The App is a great example of how ArcGIS Online can be used practically on site and can be tailored to meet the needs of the client. For the Boffa Miskell graphics and mapping team, this project has sparked ideas for how the tools can be applied to a whole range of situations.
The App is currently being used by CERA’s Port Hills team to map proposed land treatments, produce plans for tendering work to contractors and keep record of assets.
Development of ‘The App’ to fulfil management objectives for the Port Hills Red Zone, in accordance with the Port Hills Interim Land Treatments Report.
|Client||Canterbury Earthquake Recovery Authority (CERA)|
|Project team||Mark Brown|
Canterbury Earthquake Recovery Authority (CERA)
|Project date||2013 - 2015|