sDNA was used behind the scenes to estimate ecological footprints for numerous Hay Festival alternative transport scenarios.  We found that ecological impacts could be cut most by reducing international air travel and replacing private car journeys with appropriately structured bus and minibus services.  However the success of these would rely heavily on having high uptake, so if that can’t be achieved then car sharing can also cut a good proportion of the transport footprint.

sDNA was used to quickly estimate distances for fastest routes to the festival over the entire UK road network, using angular analysis as a proxy for speed.