A new report says that the Long Island Rail Road's on-time performance slipped this year compared to 2017.

In all, 3,000 more LIRR trains were delayed this year compared to 2017, according to LIRR data.

Evening peak trains ran at an 86.6 percent on-time rate this year. The Long Island Rail Road deems a train late if it shows up six or more minutes later than its scheduled arrival at it's final destination.

"One reason that we've been saying for many years is that the railroad doesn't measure on-time performance the right way, therefore they don't know where the problems are," says Peter Haynes, president of the LIRR Commuters Campaign. "And if they don't know where they are, they can't fix them."

"Measure on-time performance in terms of passenger hours delayed, and then you'll see where people are late," adds Haynes.

According to the LIRR report, Ronkonkoma was the branch with the worst on-time performance. The best-performing was Far Rockaway.

News 12 reached out to the railroad for comment. LIRR officials say on-time performance is not where they want it to be, and add that they'll be working on replacing switches and protecting infrastructure from the weather to help prevent delays.