POTENTIAL MEANS OF COST REDUCTION IN GRADE CROSSING MOTORIST-WARNING CONTROL EQUIPMENT. VOLUME II. COMPARISON OF SOLID STATE AND RELAY DEVICES AND TECHNIQUES
Consideration is given to the properties of solid-state circuits, miniature relays and large gravity-operated relays when applied to control systems for grade crossings equipped with train-activated motorist warnings. Factors discussed include original cost and service-life cost, vulnerability to environment, reliability and fail-safety, power requirements, maintainability, complexity of tasks to be performed and economic scale.
- Record URL:
- See also Volume 1, PB-277946, RRIS 08 175477, Bulletin 7802.
Lowell UniversityLowell University Research Foundation
Lowell, MA United States 01854
Transportation Systems Center55 Broadway, Kendall Square
Cambridge, MA United States 02142
Washington, DC United States 20590
- Holmstrom, F Ross
- Publication Date: 1977-12
- Media Type: Digital/other
- Pagination: 50 p.
- TRT Terms: Control devices; Cost estimating; Electric circuits; Electronic control; Electronic controllers; Estimates; Fail safe systems; Grade crossing protection systems; Maintainability; Railroad transportation; Relays (Electricity); Reliability; Signal devices; Solid state devices; Transient analyzers; Warning systems
- Old TRIS Terms: Circuits; Electric relays; Electrical transients; Grade crossing protection; Solid state controls
- Subject Areas: Finance; Railroads; Safety and Human Factors;
- Accession Number: 00175478
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: DOT-TSC-FRA-76-21-IIFinal Rpt., FRA/ORD-77/45.II
- Contract Numbers: DOT-TSC-589
- Files: NTIS, TRIS, USDOT
- Created Date: May 31 1978 12:00AM