I live about a block away from both a WSOR crossing and CN crossing. The CN crossing is a horn-free zone with the gates and the like, and the WSOR track isn't. The CN tracks are ribbon rail and the WSOR tracks are still sticks, so WSOR trains go through very slowly. So, that makes it easy for me to tell which train is coming by wether or not I hear a horn and by how fast it sounds like the train is moving.
However, I've recently been hearing horns blasting all the time, and what's weird is it sounds like the horns are on fast moving trains, which made me think it's CN blasting it's horn through a horn free zone for no apparent reason. So tonight, the mystery was solved when I got stopped at the CN tracks, only to see a WSOR train come blazing through with it's horn blasting.
So what's the deal? WSOR doesn't have to abide by the whistle free zone rules when they're on someone elses track? Or do they just not know the crossings are whistle free? (Note that I'm not really bothered by train horns because I'm a traini-o-holic, but I'm pretty sure the CN and the town of Richfield didn't go through all the expense of installing gates and road dividers just to have the trains blast their horns anyway!