on the rails prepositional phrase3 •In a train or on trains.And then over two months of hitch-hiking' and trekking in Banff and Jasper National Parks, and a few hundred miles on the rails. — 2012 •In working order, functioning properly.To The wineplace.com and Chris, Marshy and Chris for keeping me on the rails. — 2000 •Racing toward the inside, near the fence that bounds the track.