SNS3Guppy said
Who has more responsibility? Everyone.
Look for traffic like your life depends upon it. Because it does.
Descents and climbs should be punctuated with clearing turns to ensure there's no traffic one is overtaking, or which is overtaking one from beneath or above. In level flight one should make frequently clearing checks around the aircraft to view blind spots. Same for turns. Know who's out there, and don't let the radio spot traffic for you. It can certainly help, but nothing replaces what you can see.
Couldn't have put it better myself if I'd thought it out with both hands for a fortnight.
Here is a little rhyme to follow
Here lie the bones of Billie Day
Who died defending his right of way
He was right, dead right, as he flew along
But he's just as dead as if he'd been wrong.
heads UP please. It might be me you hit while you are fiddling with your GPS and I still say Saints preserve us from those who expect the radio to tell them about all the other traffic. It won't land the aircraft for you, either.
