Although the entire BNSF east of McClure Rd. falls in a quiet zone, I have noticed that engineers of various trains (Metra, Amtrak and freights) have become more aggressive in blowing the horn at grade crossings. I have noticed that in Hinsdale and near Fairview Ave (two towns that recently had accidents) almost every train is blowing the horn regardless of the situation.
Off topic, but I have recently noticed some unusual routings for some afternoon trains. Over the past few weeks I've seen trains 1243 and 1247 use the center track to Fairview, 1251 go 2-1 at Highlands (captured on video), 1251 run with the double header (also on video), Naperville expresses coming off center track at either the Fairview or Downers Grove interlockings, and in some cases go 2-3, and train 1279 go 2-3 at Fairview (also captured on video).