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Metro consultants confirm resident fears regarding noise and vibrations

  • Published in Local

metro logoA consulting firm hired by Metro has confirmed local residents’ concerns about Metro’s new 7000 series trains – they are louder than the old ones and may have a tendency to vibrate more, shaking nearby homes.

Consultants from Wilson Ihrig, the firm Metro hired for the study, said in the report posted online March 24 that in all but one residential site tested, vibration from the trains was higher for the 7000 series, than the older ones. The study concluded this by measuring ground-borne vibration in houses a few hundred feet from the track centerline when a train passed by.

The report’s authors said some Metro trains violated the organization’s design criteria by go over the recommend vibrations for nearby homes.

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Shake, Rattle, but Metro won’t roll

  • Published in Local

metro logoA Washington Metropolitan Area Transit Authority contractor has confirmed that some homes located over a section of the Green Line are vibrating more than they should but the cause of the vibration is unknown, Metro General Manager Paul Wiedefeld said last week.

“WMATA continues to analyze track conditions, car design and car maintenance to identify the cause or causes for the elevated readings,” Wiedefeld said, but a report on the investigation of vibrating homes will not be available until 2018.

Ward 4 D.C. Council member Brandon Todd said residents in Northwest D.C. have been complaining to him about vibrations and damage to their homes for more than a year. 

“I remain extremely concerned that progress on this matter has been unusually slow, given the significance of the impacts described by residents,” Todd said last month.  “They report intense shaking of the vibration of their homes, which is causing cracks in the wall and other property damage. Similar reports have also occurred in other neighborhoods throughout the district.”

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Metro Examines Fasteners

  • Published in Local

Vibrations on the Green Line and possible ties to derailments explored in subway

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WASHINGTON – Metro’s chief safety officer, Pat Lavin, said Tuesday Metro is investigating a possible connection between Metro rail fasteners and shaking houses located above the Green Line.

Inspectors say some of the fasteners may have been less than a day old when discovered broken.

“I wouldn’t say the rail clips are defective,” Lavin said. “If there’s an issue with a certain clip or a certain batch, those would be explored.”

Residents of D.C. neighborhood Petworth, located above the Green Line, complained to Metro executives last year they believe trains are causing their houses to shake and to vibrate, Metro said.

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