SYMPOSIUM ON BRAKING SYSTEMS IN RAILWAYS: EVOLUTION IN THE GEOMETRIC CONDITIONS OF THE TRACK AND TECHNICAL AND ECONOMIC OPTIMIZATION OF DECISIONS CONCERNING ITS MAINTENANCE AND REPAIR. STUDY OF A JOINT MODEL

SIMPOSIO SOBRE SISTEMAS DE FRENADO EN FERROCARRIL: LA EVOLUCION DEL ESTADO GEOMETRICO DE LA VIA Y LA OPTIMIZACION TECNICO-ECONOMICA DE LAS DECISIONES PARA SU CONSERVACION Y RENOVACION. ESTUDIO DE UN MODELO

STUDY OF THE EVOLUTION IN THE CONDITIONS OF RAILWAY TRACKS IS BASED ON THE FOLLOWING FACTORS: INCREASE IN COMMERCIAL SPEEDS; INCREASE IN UNIT LOADS TRANSPORTED; STANDARDIZATION OF THE TRACK MAINTENANCE OPERATIONS. BECAUSE OF THE QUANTITY, IMPORTANCE AND EFFECTS OF THE FACTORS TO TAKE INTO ACCOUNT, IT IS ABSOLUTELY NECESSARY NOT ONLY TO SUPERVISE BUT ALSO TO FORECAST THE EVOLUTION WITH A VIEW TO SETTING UP OPTIMUM MAINTENANCE PLANS WITHIN THE LIMITS OF THE MOST ECONOMICAL PRICE, AS A FUNCTION OF: (1) SAFETY AND COMFORT STANDARDS; (2) AVAILABLE PERSONNEL AND EQUIPMENT; (3) THE BUDGET ALLOCATED. TO ANALYZE THE GEOMETRY OF THE TRACK, THE FOLLOWING PARAMETERS ARE DETERMINED: LONGITUDINAL AND TRANSVERSE LEVELLING, ALIGNMENT AND WIDTH OF THE TRACK. TO ANALYZE THESE PARAMETERS PARAMETRIC, STATISTICAL OR SPECTRAL METHODS ARE USED. A MODEL IS PROPOSED WHICH IS BASED ON THE FEASIBILITY THEORY AND MULTIPLE STOCHASTIC MATHEMATICAL OPTIMIZATION. IT CAN BE USED TO FORECAST THE DETERIORATION IN QUALITY AND THE ECONOMIC CONSEQUENCES OF POSSIBLE ACTIONS. THE RESULTS OBTAINED WITH THE MODEL CONCERN: THE FORECAST OF THE DEGREE OF DEFORMATION OF THE TRACK DUE TO TRAFFIC, THE SETTING UP OF A MAINTENANCE PLAN, THE ESTABLISHMENT OF A RELATION BETWEEN THE QUALITY OF THE TRACK AND THE ECONOMIC LEVEL OF OPERATION. SEE ALSO IRRD ABSTRACTS NOS 106205-8, 106210-3.

  • Authors:
    • Lopez, J
  • Publication Date: 1976-4

Language

  • Spanish

Media Info

  • Pagination: 67-79
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01298756
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Nov 21 2010 6:51AM