NEW YORK - Long Island Rail Road riders have been warned to expect a "summer of hell" while repairs are made to Penn Station.

Now they have a better idea of what's coming.

The MTA on Monday laid out its revised schedule for the railroad while the renovation work is being done.

It involves a 20 percent reduction in service into and out of Penn Station starting next month.

Two trains into Penn will be canceled every weekday morning.

Thirteen westbound trains will terminate at Atlantic Terminal in Brooklyn, Hunters Point in Queens, or Jamaica Station.

But three new trains will be added early in the rush hour, and 16 trains will have extra cars.

In the evening, seven trains out of Penn will be canceled.

Ten more eastbound trains will originate in Brooklyn and Queens instead of Penn Station.

Two trains will be added, and 13 trains will get more cars.

The MTA will launch two new ferry routes to 34th Street from Long Island City and from Glen Cove on Long Island.

And it's creating new park and ride bus options throughout Nassau and Suffolk Counties.

The MTA will also offer free morning subway transfers to all Long Island Rail Road ticketholders at Hunterspoint Avenue, Jamaica Station and Atlantic Terminal.

The plan takes effect when repairs begin on July 10, and will last until at least September 1.