It said the problem - a failure in the train drivers' radios - was very unusual and that rail passengers travelling during rush hour on Tuesday should have a much better journey.
Coverage of the travel rush nears a peak with reports on rail and road traffic, while the People's Daily also reports that hundreds of thousands of migrant workers in southern Guangdong province set off home on motor bikes.
But if properly managed, the rush of tourists could provide the revenue for improvements to road, rail and air transport that would benefit the whole economy.
All three commuter rail systems were planning to add extra train service in the afternoon to help carry an anticipated early rush hour of Manhattan office workers departing ahead of the storm.