How bad do users find the internal roads at Heathrow? It looks over complicated, does it need fixing?
For example,
https://world.waze.com/cartouche/?zoom=4&lon=-0.45014&lat=51.47965&layers=BTFFFTTTTFTTTFTTTTT
and
https://world.waze.com/cartouche/?zoom=4&lon=-0.4501&lat=51.45729&layers=BTFFFTTTTFTTTFTTTTT