The noise generated from the motorway is by far the most invasive. During the day it almost goes un noticed because of familiarity - its an almost normal background - but during the quieter times of the day and evening, it is far worse than the occasional aircraft. I am sure there are many out there who live similarly, in proximity to a motorway or indeed railway and you might agree.
I live in proximity [sound wise] to 3 military airfields and am under the arrival flight path of a main airport. I chose to live here and to be honest with you, I get really stressed about the traffic on the road outside my house even behind triple glazing. Aircraft noise - WTF is that? Hardly ever heard any!!!!!!!!!! [above the noise of the traffic] I suspect that these dolts are pretty much in the same circumstances and are pretty much bored with little else to do. Sad. Very Sad.
Best Wishes