About the Clean Air Route Finder
The Clean Air Route Finder is a journey planner developed by Cross River Partnership and King’s College London to help identify low pollution walking and cycling routes in London.
The route finder retrieves up to three alternative walking or cycling routes from Google Maps then calculating the total modelled pollutant dose along each route for nitrogen dioxide (NO2) and PM10 and PM2.5 particulates using a combination of average concentrations, distance and ventilation rate for walking or cycling. The sum of these modelled dose differences are then presented as a relative percentage difference in green/orange/red.
The London Air Quality Network (LAQN) is the most advanced air quality monitoring network in the world and through a unique combination of monitoring and modelling, King’s College London has created the London Atmospheric Emissions Inventory (LAEI). This sophisticated high resolution map of air quality details NO2 , PM10 and PM2.5 particulate and ozone (O3) concentrations right across the city.
Please contact CRP’s Brendon Harper if you would like to embed the online route finder on your website or intranet.
On-street Clean Air Routes
In addition to the online clean air route finder, CRP and partners identified and developed London’s first on-street clean air walking route between Euston and Kings Cross – as well as 13 additional on-street routes. Monitoring by Kings College London (see publications below) has shown that routes identified by CRP and partners have between air pollutant concentrations between 30% and 60% lower than more heavily-used alternatives between transport hubs and key pedestrian destinations.
With support from the Mayor of London, CRP and partners are encouraging pedestrians to use these routes by planning and delivering on-street signalling, including signposting, greening, lighting and urban realm improvements. These interventions will deliver on the Mayor’s healthy streets approach to London’s public realm.
Read about our clean air walking routes work in the Guardian article “Side street routes to avoid city pollution can cut exposure by half.“
Air Quality Project Manager