As aircraft technologies continuously evolve, the need of assessing the current dimensioning method of runway width was identified. Therefore, the STAC mandated the French Geographic Institute (IGN) to develop a system to measure, during 5 seconds, the lateral position of aircraft from the runway centreline at touchdown.
The IGN system is based on a multiple stereoscopic vision and photogrammetric measurements of the aircraft position during the landing phase. Thanks to its advantages (passive, on-ground, lightness and precision), this system easily overcame the airport airside constraints.
The measurements were conducted at Paris Charles de Gaulle airport from 13th November 2008 to 22nd December, 2008. They enabled the STAC to confirm its conclusions about the current aircraft codification system and its consequences on the design of runways.