GO riders on the Kitchener and Stouffville lines are expected to get a boost to their train service in the off-peak, following Labour Day.

The Kitchener line will get hourly trains in both directions between Union Station and Mount Pleasant, one stop east of Georgetown, according to Toronto Star sources.

GO is also looking at hourly off-peak service between Union Station and Unionville on the Stouffville line. Because Stouffville is still a single track, the trains will be timed to pass one another at the Scarborough Station, said the source.

Go currently offers only rush-hour service on those two train lines.

The Kitchener improvements are expected right after Labour Day with the Stouffville trains coming later.

Metrolinx, the provincial agency in charge of GO Transit, would not confirm the additional trains. GO will be making fall service announcements mid-August, said Anne Marie Aikins.

Transportation officials have been clear that there will be regular service boost announcements as the province works toward its $13.5 billion regional express rail (RER) plan, rolling out over the next nine years.

That program includes electrifying the system and offering 15-minute service on some key stretches of track.

GO will increase its service by 50 per cent in the next five years, from about 1,500 trips to 2,200 a week, Premier Kathleen Wynne announced in April.

Although Metrolinx is already working on adding an additional track to the Stouffville line, the province has said it won't be electrified until 2022-23. Nor will Kitchener.

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