by Bob Tuzik, January 1, 2005 Any problem affecting the New York City Transit is by default a big problem. The process of transporting more than four million passengers per day in 6,000 vehicles on more than 700 miles of elevated, underground at-grade mainline tracks, on a system that operates 24 hours …
by Bob Tuzik, January 1, 2005 When NYCTA wanted a new fastener that was 35% “softer” than the softest DF fastener it had in use, a fastener that would not raise the track by more than 1-1/8 inches (30 mm), Dynamic Engineering designed the APT-BF system. The APT-BF fastener incorporates two elastic …
By Bob Tuzik • November 4, 2004 If the first unwritten rule in optimizing the wheel/rail interface on rail transit is: Know your system; the second rule should be: Recognize that the w/r interface is a system. “No single department can attack the issues in isolation and expect to get very far,” Joseph Oriolo, Senior …
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