RAIL LAID WITHOUT EXPANSION ALLOWANCE VS. RAIL LAID WITH NORMAL EXPANSION ALLOWANCE

The purpose of this test is to determine by service test the practicability and advantages of laying end hardened rail without expansion allowance and with joints "frozen", as a means of reducing rail end impact and noise, and rail end batter. The design and laying of the test track is described. Walking inspections and observations of the test during the recording of field data have indicated superior surface and rail end condition of the tight rail as compared with the standard. Riding the Aero Train, which was noticeably noisy, showed a lower level of joint noise on the tight rail. The joints in the tight rail have lost less camber than those in the standard rail. During nine year's service it has been determined that rail laid without expansion offers reduction in joint bar wear and reduction in loss of joint camber as well as a better maintained track for equal expenditure.

• Corporate Authors:

  Penn Central Transportation Company

  Transportation Center, 6 Penn Center Plaza
  Philadelphia, PA  United States  19104
• Authors:
  • Code, C J
• Publication Date: 1958-6-3

Media Info

• Features: Figures; Tables;
• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Concrete hardening; Field tests; Hardness; Impact loads; Rail joints; Railroad rails; Railroad tracks; Ride quality; Sound level; Structural design; Technology; Wear
• Uncontrolled Terms: Track design
• Geographic Terms: United States
• Old TRIS Terms: Impact loading
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00040340
• Record Type: Publication
• Report/Paper Numbers: Test No. 510 Prog Rpt
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM