NO MOTION DETECTOR AIDS DOOR SAFETY

TO PREVENT THE OPENING OF RAPID TRANSIT CAR DOORS WHEN A TRAIN IS IN MOTION, MOST NEW CAR SPECIFICATIONS CALL FOR A "NO MOTION" DETECTOR. WITH INCREASED EMPHASIS ON PASSENGER SAFETY BY PUBLIC OFFICIALS, DOOR PROTECTION DEVICES GAIN INCREASED IMPORTANCE. ENGINEERS AT THE VAPOR CORPORATION HAVE DEVELOPED A SYSTEM CAPABLE OF DETECTING SPEEDS AS LOW AS 0.1--0.2 MPH. AT THESE SPEEDS OR BELOW, DOORS MAY BE SAFELY OPENED. VAPOR'S CONCEPT IS BASED ON SENSING VIBRATIONS AT THE MOTOR OR GEAR TRAIN. TEST VERSIONS ARE REPORTED TO HAVE PROVED THE CAPABILITY OF PROVIDING A NO MOTION SIGNAL AT 0.1 MPH. THE PROBLEM IN SUCH A DEVELOPMENT WAS FOUND TO LIE IN THE DISCRIMINATION BETWEEN CAR GENERATED VIBRATIONS AND TRANSMITTED VIBRATIONS FROM TRAINS PASSING ON ADJACENT TRACKS. /MRRT/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07362064
• Supplemental Notes:
  • Vol 26, No 11, P 84
• Publication Date: 1971-11

Media Info

• Serial:
  • Modern Railroads
  • Publisher: K-III Press, Incorporated
  • ISSN: 0736-2064

Subject/Index Terms

• TRT Terms: Detection and identification; Detectors; Doors; Motion; Railroad cars; Rapid transit cars; Speed; Vibration
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226141
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 17 1972 12:00AM