TRIS Online Record

Printable View

Title	ATTENUATION EFFECTS OF UNDER-TRACK REINFORCING ON AUTOMATIC TRAIN PROTECTION SIGNALLING SYSTEMS
Accession No	00345740
Authors	Tso, S K; Lam, F K; Chan, FHY; Edgley, R K
Conference Title	Institution of Electrical Engineers, Proc Part B
Corp. Authors / Publisher	Institution of Electrical Engineers
Publication Date	19810300
Description	p. 92-100; References(9)
Abstract	The aggregate of steel reinforcement in the concrete plinths and track bed of a particular mass-transit railroad is found to present an attenuating environment to the ATP (automatic train protection) signalling system. An attempt is made to investigate the problem via two-dimensional field theory by solving Laplace's equation for the magnetic vector potential. The distributed AC parameters of the secondary circuits formed unintentionally near the track are established. The attenuation of the ATP signals in the presence of steel reinforcement is evaluated for various conditions and is found to be in good agreement with measurements carried out with life-size circuits.
TRT Terms	Automatic train protection ; Concrete slab track ; Control ; Electric railroads ; Electromagnetic interference ; Rail transit facilities ; Railroad signals ; Reinforced concrete ; Signaling
Other Terms	Railroad signals and signaling; Rapid transit facilities
Subject Areas	U15 CONSTRUCTION & TUNNELING TECHNOLOGY; I52 Construction of Pavements and Surfacings
Availability	Linda Hall Library Order Number: DOTL JC
Document Source	Engineering Index Source Data: EIX811000015
TRIS Files	UMTRIS
Database	TRIS Online

TRIS is a bibliographic database funded by sponsors of the Transportation Research Board (TRB), primarily the state departments of transportation and selected federal transportation agencies. TRIS Online is hosted by the National Transportation Library under a cooperative agreement between the Bureau of Transportation Statistics and TRB.