See 
https://www.openstreetmap.org/node/10178481999 
amongst others. 

Thank you for moving some of the 'gates' inside the terminal buildings. 

also see for more on taxiway taxilanes... 
https://wiki.openstreetmap.org/wiki/Proposal:Taxilane

I have raised the 'parking_position' being used as a way on the tagging list. Lets see what the tagging experts think?  I note there has been on proposal on the 'parking_possition'. 

