LIRR passengers will be treated to a cleaner — and hopefully faster — commute under a new agency plan.

The Long Island Rail Road will implement midroute train cleaning and increased station trash pickups to freshen up the commuter service — and replace a string of bad switches to try to help curb many of the delays that have plagued it, according to new President Phil Eng on Monday.

“LIRR Forward is the first formal step in a new direction that will help us anticipate our problems before they arise, set standards on how to quickly and correctly respond to the challenges we face, to deliver what our ridership expects of us – which is safe, reliable service bolstered by timely, accurate and effective communication,” Eng said, referring to the new program.

As part of the plan, Eng has ordered workers to replace 10 switches within the next six months that caused 44 percent of the total switch failures in the system last year. Workers will also inspect and repair joints that often break and cause track-circuit failures.

The plan will also try to keep Mother Nature from getting a toehold and causing chaos. Eng wants workers to clear 180 miles of overgrown vegetation and install 60 snow switch covers and 14 third-rail heaters.

The agency also will send cleaners to tackle trash and spills on trains midroute, and workers will do 30 percent more station cleaning, Eng said.

The plan follows on the heels of the Subway Action Plan that MTA Chairman Joe Lhota announced last summer. Former LIRR head Patrick Nowakowski released a half-hearted derided plan earlier this year and then stepped down a few weeks later.

NYC Transit head Andy Byford is expected to introduce his own subway plan Wednesday that will include strategies for adding trains and capacity in the system.

Byford said on Monday that the MTA would add trains to the A, D, E and F lines and also add buses on some Queens routes.