Sydney Trains will cut about 94 services a week from Monday as part of what it describes as a tweak to the rail timetable after the network suffered a major meltdown two months ago.

The changes – representing fewer than 1 per cent of the thousands of services each week –will mainly affect the Northern, North Shore, Bankstown, Cumberland and Carlingford lines.

Sydney Trains chief executive Howard Collins said the services to be cut were mostly late at night or early in the morning, and Opal data showed them to have low patronage levels.

“We are reusing the train resources and the driver resources. We don't want to run trains when people are not using them,” he said.