Vertical Horizontal & risk parameters used by NATS
ZKDLI
Airways were established 10 miles wide to allow for navigation errors using NDB's etc. Likewise other Airspace boundaries allow for deviations from the ideal track and provide safety margins.
Radar separation standards also provide significant margins.
These margins are provided to allow for minor errors that reduce the margins without incurring undue risks.
Controlled Airspace boundaries are not drawn to align with ground features that can be used accurately by pilots relying on visual navigation. They are invisible except on moving maps or radar.
It is inevitable that pilots navigating visually will infringe airspace by small amounts whilst using their best endevours to avoid doing so.
Does NATS record an Airspace infringement of 1 foot vertically or horizontally over the line? If not 1 foot then what vertical and horizontal parameters are used?
Is the recording of minor infringements a numbers game ploy to justify more airspace, more air traffic controllers, better pay or is genuine risk a parameter?
Regards
Spin Buster