On Nov. 24 and 25, from 4:30 to 9:30 a.m., Sound Transit plans to test four-minute run times for 1 Line trains. Test trains displaying “Out of Service” will run alongside regular service trains. Test ...

Light rail is one step closer to opening in Snohomish County. Keen observers can expect to see trains testing more frequently. LYNNWOOD — Sound Transit has begun testing its new light rail extension ...

July 8, 2009 – The Society of Automotive Engineers (SAE) International has produced a simple, consistent and economical sound test standard that can be used to determine whether a street bike ...

When specifying cooling equipment, engineers are faced with myriad decisions affecting performance and layout. One critical consideration is the noise emitted. As population density rises in major ...