Digital technology can be used to build a better knowledge of the city to help with local decision-making and improve risk and disaster management
The limits of urban and spatial planning, in particular for the most precarious neighbourhoods, originate from a lack of information and urban data on these territories. Digital technology can help improve the development of the territory through several tools.
- Predictive models of how the city changes crossing satellite imagery, weather forecasts and topography studies. On this basis, the municipality can model contingencies, predict natural disasters and their impact, locate at risk infrastructure and equipment, sketch population relocation scenarios.
- Participatory or community mapping exercises, often conducted with backing from NGOs, universities or donors. In this way, inhabitants of precarious neighbourhoods can generate digital maps, or even geographic information systems on residential areas neglected by urban planning. These maps can take account of representations and actual uses, as well as report on emergencies or needs expressed by the inhabitants.
- The coverage of fundamental management and planning data. The land and property registry can be revisited by simple digital tools to help the city to better investigate the requests made, design functional zoning, prohibit urban development on certain sites, inventory the plots that are under-used and can be re-purposed, etc.
ICT can be an opportunity to fundamentally renew urban and spatial and planning tools, from more precise and up-to-date information on urban functioning, including on the more informal or excluded fringes. Digital technology can be used to assemble data on physical, social, economic, land ownership, environmental, etc. aspects; cross-reference it with public intervention capacities, and study the effects of an intervention on the whole territory. It is a real opportunity for building a knowledge database to guide the decisions-making.
Generating new knowledge on the city using digital technology seems an inevitable trend, and this data is made visible by dynamics that are informal or outside the public sphere. For local authorities, the challenge is to use this information for urban inclusion actions instead of ignoring it.