It is possible to reverse trains from west to east at Ruislip. Trains must detrain in the westbound platform and then continue for approximately half a mile to a reversing siding leading to Ruislip Depot. After reversing, the train must come back the way it came and enter the eastbound platform by means of a crossover. Unfortunately, while this manoeuvre is carried out, both the westbound and eastbound services are held up. Therefore, this manoeuvre is usually only done by some peak-hour Piccadilly line trains due to the inconvenience it causes. There was formerly a crossover to the east of the station enabling trains to leave the westbound platform in an easterly direction, and a goods yard to the north of the line.