Expo Grandly Lauds Itself And Asks, Palms up, What Train Noise?By Ari L. Noonan @ 4:00 PM August 01, 2012
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Residents near the light rail line might be surprised to learn that the unusual noises they have been hearing since the train arrived on June 20 are reposing deep inside their imagination.
Or in that vicinity.
Expo’s latest analysis determined that there are no significant noise/vibration impacts in the Culver City area.
When the Expo Construction Authority last week sent an Executive Summary of a self-conducted noise/vibration report prepared for the Phase 1 portion of the light rail line to City Hall, a somewhat skeptical Public Works Director Charles Herbertson had a one-line reaction:
“One of my favorite Reagan quotes is, ‘Trust but verify.’”
Expo insisted that the project actually has improved the ambient noise levels in the Culver City by re-routing westbound National Boulevard and constructing a soundwall for the project.
Tomorrow, the Expo staff/noise consultant will present the findings of this report to the Metro Line Construction Authority Board at its regular meeting.
City Hall has retained an acoustical consultant to address noise/vibration issues emanating from operations of the newly opened train, and Mr. Herbertson said this afternoon he has not yet had a chance to vet the executive summary.
Of the report, he said:
“I don’t believe, necessarily, there is any intent to mislead. But there are different ways of looking at the problem. Right now, all we have is the executive summary.
“We still want to know where the noise measurements were taken. There was not any mention in the executive summary about the speeds at which the trains were going. We think that is a significant factor.
“I have ridden the train a number of times,” Mr. Herbertson said. “It appears that they are inconsistent with the speeds they run. For various reasons, they run slower going into the Culver City station.
“We don’t believe, though, that is going to be the case indefinitely.
“One of our concerns is, you make noise measurements on the way you are operating right now. But that is not the way you always are going to be operating. Are those noise measurements valid? Those are the types of questions we need to ask.”