Train horns rock! Yeah I'm nube. But grew up around gravel trains, flow boys and other 42 wheelers. Four best sounds in the world: A true diesel engine goin thru the gears, A good throaty jake brake, a loudass train horn and finally, the sound of the "ma duece" M2HB kickin ###!
Seriously tho, anybody ever been up to the St Ignace truck show? They go across the Mackinaw Bridge at night, lighted up, and all you can hear are those train horns and jakes as they come off the bridge. Ahhh... the smell of diesel fuel!