LITTLETON, Colo. -- Some residents who live next to the Mineral Street light rail station near Sante Fe are blasting the Regional Transportation District for giving up on three years worth of efforts to reduce noise and vibration problems affecting their very expensive homes.

RTD said it tried its best but failed to fix the problem.

Patty Schultz is upset that her home has been vibrating for several years and will keep on vibrating.

"The engines will come by first and of course they're very noisy and disruptive to your sleep, and then you start to vibrate," said Schultz.

She said the vibrations got worse when RTD built the southwest light rail line and moved the regular train tracks 100 feet closer to the homes in Golden West park.

She said her youngest granddaughter lives next door with her family and the noise of a heavy coal train going by hasn't been good for the little girl.

"Her pictures will vibrate, so they've had to take the pictures off the wall so she can sleep," Schultz said. "You can be in bed at night sound asleep and all of a sudden you just start rocking back and forth, and you wake up and you're startled because you don't know for a second what's going on."

But not all the neighbors along the 2-mile stretch of railroad are upset.

"It doesn't bother us," said resident Eldred Compton.

Many, like Compton, have gotten used to the trains. But a few say RTD should do more to mitigate the problem. RTD said it's tried but nothing worked.

According to the Denver Post, the district spent about $250,000 on tests and experimental padding to try to quell the vibrations, but a recent study showed the efforts did not help.

"The fact is there is no technology that is proven to deal with this low-level vibration that we have here in the Jackass Hill area," said RTD spokeswoman Amy Ford. "We've tried an experimental technology. It didn't work. So at this point after the expense of a couple of hundred thousand dollars, we can no longer address the issue."

RTD said they've done everything they can to alleviate the problem and even went beyond federal requirements to investigate the situation. Some neighbors say whatever RTD did wasn't enough.