Some Kitchener rush-hour trips coming from Union Station will soon begin switching to other platforms, Metrolinx says.

Starting this Wednesday, all Lakeshore West, Milton and Barrie afternoon trips on the GO will depart from different platforms, according to Metrolinx.

The move come as the service tries to "enhance safety and communication features at Union Station," Metrolinx spokesperson Nitish Bissonauth said Monday afternoon.

"Last week we had platform changes and that went really well. This week's platform changes are more extensive and so will be impacting many more customers," he said.

Bissonauth says they recommend people give themselves extra time.

"Give yourself plenty of time and obviously to watch the departure boards to see where your train is going to be at," he said.