Using an approach known as "inertial navigation", modified from military and industrial applications and Dr Donikian's own work with firefighters and first responders, Navisens' algorithms process raw data gleaned from low-cost motion sensors on smartphones.
The European Union's transport commissioner, Siim Kallas, promised greater co-ordination between the 38 member states of Eurocontrol, the body supposed to integrate air navigation services across Europe, and a more dynamic approach to risk assessment.