CP's traffic predictions proved largely correct. Contrary claims that early traffic would be mainly eastbound were unfounded, but became a reality within 20 years. Two pusher locomotives, each needing crews, were adequate for each side. However, pusher gradients were expensive to operate. Most loaded freight trains required a single pusher, because they were longer than 9 cars. Wyes were at the Selkirk pushing extremities of Beavermouth (east) and Albert Canyon (west). At the summit, a roundhouse and rail yard existed. Some days no freight trains passed, but on the arrival of a steamer in Vancouver, there could be a quick succession eastward for several days. Double heading replaced rear pushing from 1907. Local traffic was negligible.
