00621442

Component

http://onlinepubs.trb.org...trr/1991/1314/1314-024.pdf

https://scholar.google.co...ilva&publication_year=1991

Operation with heavy-haul trains on Brazil's Ferrovia do Aco (Steel Railway) began in March 1989. Although the original project was for a totally electrified railroad using 25 kV, 60 Hz, the initial operation was with diesel-electric locomotives. Because this railroad has many tunnels, the longest one being 8.6 km, diesel-electric locomotive performance inside tunnels and questions such as type of consist, headway, and environmental conditions inside tunnels were intensively discussed. Because the dynamic operation of a heavy-haul train through long and difficult stretches is extremely complicated, and many random variables are involved, such an operation cannot be estimated in a simple mathematical simulation. Therefore, the necessity of preliminary tests in actual operation became a reality before the beginning of traffic activities. A system was developed to gather data from several points of the tunnels and another system to gather data from on board the locomotives. Both systems were computerized, coupled directly to sensors strategically located inside the locomotives and tunnels. The collecting of data both inside the tunnels and that concerned with the locomotive behavior was performed in real time, both systems being synchronized with the computer's built-in timer.

This paper appears in Transportation Research Record No. 1314, Advanced Train Control Systems 1991: Proceedings of a Symposium, June 17-19, 1991, Denver, Colorado. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01495454

p. 147-154

1991

Transportation Research Record

First International Symposium of Advanced Train Control

0309051517

Figures (12) ; References (2) ; Tables (1)

Data collection; Diagnostic tests; Microprocessors; Railroad tunnels; Real time control; Real time data processing

Diagnostics

Brazil

Brazil

Design; Highways; Railroads

TRIS, TRB

Apr 30 1992 12:00AM

• ADVANCED ATP SYSTEM FOR IMPROVING TRAIN TRAFFIC DENSITY AND CONTROL EFFICIENCY
• ADVANCED TRAIN CONTROL SYSTEMS CONTROL FLOW DEVELOPMENT AND VALIDATION
• ADVANCES IN FLAT PANEL DISPLAY TECHNOLOGY AND APPLICABILITY TO ATCS ON-BOARD TERMINALS
• ASTREE: A GLOBAL COMMAND, CONTROL, AND COMMUNICATION SYSTEM
• ATCS AT CP RAIL--STEADY AND MEASURED
• AUSTRAC: THE AUSTRALIAN ATCS
• AUTOMATIC TRAIN PROTECTION ON BRITISH RAIL: PRESENT PLANS AND FUTURE POSSIBILITIES
• Decision Support System for Train Dispatching: An Optimization-Based Methodology
• DEVELOPMENT OF A WAYSIDE DETECTOR OPEN COMMUNICATION STANDARD
• ESSENTIAL ELEMENTS OF SYSTEM INTEGRATION
• IMPROVEMENT OF ATCS OPERATIONAL SAFETY AND EFFICIENCY THROUGH HUMAN FACTORS APPLICATIONS
• INTEGRATION OF ATCS WITH MIS
• MANAGEMENT AND INFORMATION SYSTEMS COMPONENTS OF SUCCESSFUL ATCS
• MIGRATION FROM CONVENTIONAL SIGNALING TO NEXT-GENERATION TRAIN CONTROL
• OPERATION CONTROL AND SIGNALING SYSTEM FOR HIGH-SPEED LINES
• PERFORMANCE AND CAPACITY ANALYSIS OF AN OPERATING ATCS COMMUNICATIONS SYSTEM
• PILOT SYSTEM OF CARAT ON THE SANYO SHINKANSEN LINE
• PROTOTYPE AND TEST ENVIRONMENT FOR ATCS DATA COMMUNICATIONS
• RAILROAD OPERATION USING THE ADVANCED TRAIN CONTROL SYSTEM
• REALIZING BENEFITS FROM ATCS USING A MOTIVE POWER INFORMATION AND MANAGEMENT SUPPORT SYSTEM
• TRAIN CONTROL ON FRENCH RAILROADS
• UIC EUROPEAN TRAIN CONTROL SYSTEM
• VALUE OF HIGH-QUALITY SERVICE: HOW SHOULD THE ARES-EQUIPPED RAILROAD OPERATE?
• VERIFICATION AND VALIDATION FOR ADVANCED TRAIN CONTROL SYSTEMS