VIBRATION PREDICTION MODEL FOR FLOATING-SLAB RAIL TRANSIT TRACK

This report presents the theoretical development of a model to predict the vibration reduction by floating-slab tracks in subway tunnels. Data from a field study in New York City are also presented. The report is one of three reports dealing with noise and vibration control for urban rail transit track and elevated structures. The theoretical model described allows for the prediction of the force transmissibility--the ratio of the amplitudes of the force on the tunnel floor and the force on the rail. Data from the field study support the use of a simple single-degree-of-freedom oscillator for predicting vibration reduction. The theoretical model developed allows predictions to be made for a more general case.

• Corporate Authors:

  Cambridge Collaborative

  Cambridge, MA  United States 

  Urban Mass Transportation Administration

  400 7th Street, SW
  Washington, DC  United States  20590

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142
• Authors:
  • Manning, J E
  • Hyland, D C
  • Tocci, G
• Publication Date: 1975-8

Media Info

• Pagination: 142 p.

Subject/Index Terms

• TRT Terms: Concrete slab track; Damping (Physics); Environmental quality; Instrumentation; Mathematical models; Mathematical prediction; Measuring instruments; Noise; Noise control; Railroad tracks; Railroad tunnels; Signal generators; Structural design; Subways; Test tracks; Theory; Vibration control
• Identifier Terms: New York City Transit Authority
• Uncontrolled Terms: Noise reduction; Subway noise; Track design
• Old TRIS Terms: Noise attenuation; Oscillators; Subway environment; Subway railways; Track structures
• Subject Areas: Construction; Data and Information Technology; Environment; Public Transportation; Railroads;

Filing Info

• Accession Number: 00093363
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: UMTA-MA-06-0025-7513Final Rpt., DOT-TSC-UMTA-75-17
• Contract Numbers: DOT-TSC-643
• Files: NTIS, TRIS, USDOT
• Created Date: Dec 16 1981 12:00AM