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.


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.”


Metro examines possible effects of heft and vibrations from newer subway cars

  • Published in Local

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WASHINGTON – Metro is investigating residents’ complaints that trains are causing damage to D.C. homes, according to a spokesperson.

Meanwhile, the organization has been looking for rail fasteners that can hold more weight.

Spokesperson Richard Jordan said in a statement Metro is investigating the claims as well as whether Metro even has a role in the vibrations that those D.C. residents reported.

“Metro has retained an independent third-party expert (Wilson Ihrig) to conduct field measurements following complaints of vibration from residents along a specific section of the Green Line,” Jordan said Wednesday. “While Metro has not confirmed the cause or severity of these vibrations – or even confirmed that the complaints are Metro-related, we have committed to conducting independent testing to determine next steps.”

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