SPEED OF TRAINS THROUGH TURNOUTS

This report discusses testing by the AAR to determine standard turnouts which would give maximum comfort at maximum speed. Field tests used #24 frogs with 39 ft. switch points at 50 mph and #20 frogs with 30 ft. swtich points at 40 mph. It was concluded that the frog/switch speed combination gave the maximum lateral accelerations expected in high speed running.

• Corporate Authors:

  Association of American Railroads

  3140 South Federal Street
  Chicago, IL  United States  60605
• Publication Date: 1961-8

Media Info

• Features: Figures; Tables;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Dynamics; Frogs (Railroads); Hunting (Dynamics); Point demerit systems; Railroad turnouts; Ride quality; Technology; Trucks; Vehicle dynamics; Velocity
• Uncontrolled Terms: Lateral dynamics; Switches; Vertical dynamics
• Geographic Terms: United States
• Old TRIS Terms: Points
• Subject Areas: Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00040000
• Record Type: Publication
• Report/Paper Numbers: AAR-ER-14
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM