Two of the buses had problems with the ice in the parking lot at Alpine. This also prevented another two buses to remain. One bus left on time another followed shortly. The last buses with stops at: Lincoln Park, Winnemac Park, Park Ridge, Oak Brook, and Hyde Park are a bit later. The last bus was just before 4 PM, so judge accordingly. The only solution to avoid this scenario might have been if we had salt or sand available to us to pour on the ground.
Sorry about this,