langleybaston,
Far more can be done...
More accurate measuring equipment has been developed, tested and is now available Commercial Off the Shelf (COTS)..
The cost of new AWS/ASOS is NEGLIGIBLE when compared to the cost of a B777 hull loss..
If Airport Operators can afford to build large terminals, hangars, car parks and office buildings they surely can afford the costs associated with fully investigating and monitoring the impact of this infrastructure on the ongoing safety of flying operations..
Further, airports don't just cater for HEAVY jets.. The impact of development needs to be examined with regard to ALL AIRCRAFT that use, or are forecast to use an airfield..including light aircraft, medium aircraft and helicopters..