Effective at 1100 Hours today, AAR Channel 54 (160.920 MHz) is in use as the new road channel on the CN Waukesha Subdivision between Forest Park, IL and the State Line between Illinois and Wisconsin. The old channel AAR 79 (161.295 MHz) will remain in use as a dispatcher channel. As of 1600 Hours today, the hotbox detector in Wheeling, IL has been changed over to the new channel however Deval Tower in Des Plaines remains on 161.295. Monitoring radio conversations, it is anticipated that Deval will change over in the next few days. While monitoring the new channel of 160.920 MHz, I am also hearing train-to-train traffic between engineers on the old EJ&E line; so apparently this new channel is also the road channel on other CN subdivisions. As of this time it is unknown what other changes have taken place on the other CN subdivisions.