Authors: Age Poom, Joose Helle, Tuuli Toivonen
The new Green Paths routing tool helps pedestrians and cyclists to choose urban commuting routes with less air and noise pollution. The tool is a proof of concept of exposure-optimised routing. It functions in the Helsinki capital region where the necessary environmental data is available.
This novel routing tool suggests a set of routes to the user-defined destination that are less polluted than the shortest, often busy main road. This is different from the traditional routing concept that considers only distance or travel time for route choices.
The users of the Green Paths routing tool can follow their own preferences in making the final route choice that is quieter, has fresher air and feels more pleasant. As such, the user becomes an active decision-maker, empowered to choose the most appealing route with only a modest increase in travel time. The new Green Paths routing tool indeed aims to improve travel satisfaction. A pleasant travel experience makes commuters more likely to walk or cycle regularly. In this way, commuters using the Green Paths tool contribute to a more sustainable city with cleaner air.