A new application promise to help The inhabitants of Barcelona find the most shaded path between two places to avoid the extreme heat.
Cool Walks , a pedestrian routing tool first developed at a data visualization contest , aims to show users a variety of walking routes to take for their intended destinations .
Users can choose the most direct route, a shaded route it may take a little longer, or they may set the app to "vampire mode" which avoids direct sunlight at all costs. Users can also use the app to find backgrounds.water tanks or places to shelter from the sun.
The application uses a tool called Lidar to create templates from ground elevation resolution, accurate to within 10cm. This information is combined with data on the sun's path to determine where the shadow is at any time of the day.
Barcelona seeks to use spaces greens and trees as part of its efforts to mitigate the effects of global warming. The 20 year tree masterplan aims to increase the proportion of land covered by trees from 25% to 30%.
Albert Carbonell , principal analyst at the Geographic Information Systems Departmenthique of the Barcelona Regional urban planning agency and one of the developers of the application, said: “I don't know a lot of cities that deal with the routing of pedestrians. It is good for a public agency to work with data that the city has provided us, to demonstrate that it is possible to find technological solutions to climate change. "
Although the tool only maps a neighborhood of Barcelona, it is hoped that the research will provide information on how the city can be found. 'adapt to extreme heat to protect its citizens and its economy.
Marc Montlleo, director of environmental projects at Barcelona Regional, said vampire mode had been created from "the most extreme form of the data algorithm".
He said: "We wanted to generate different options so that you can choose faster or faster routes.fee and we calculated three different algorithms. The vampire mode was made by our team who drank a lot of beer the day before. It was for a little fun to avoid the sunlight altogether. "
Heat waves kill more people than any other climate hazard According to C40, a climate leadership group made up of 97 cities around the world, episodes of extreme heat in cities can lead to increased mortality of up to 14%, as well as reduced productivity. labor and damage to infrastructure such as roads and railroads.
Jon Burke, a former Hackney city councilor in London, who was responsible for a massive expansion of tree planting in the borough, said: “I think we should consider this particular type of enforcement as an interim measure to reduce impact.extreme heat… while cities are rapidly investing in urban vegetation cover and larger green infrastructure.
"The scientific literature on urban forestry is clear: in order to start reducing temperatures during episodes of extreme heat, we need to aim for a minimum of 40% canopy cover on the street, and combine this with additional green infrastructure interventions and systematic elimination of heat trap concrete, ta rmac and other hard surfaces.
"Leaders also need to think about how to deploy green infrastructure in a way reduce peak grid electricity demand for cooling, and in a highly strategic manner. ways […] Health services will also have to prepare more and more for the excesses of summer, rather than winter, admissions and deaths.
" Trees and the larger green infrastructure are the most advanced technology known to mitigate the impact of the densification and rapid warming of our cities. City leaders should make this their priority in the first place. "