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Mike Roney Past Chairman – International Heavy Haul Association Excellence in Heavy Haul Railroading: Highlights and Lessons Learned from IHHA2011 October 17, 2011
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2 Outcomes 604 delegates 110 papers presented and in Proceedings 52 posters 2-day Track Workshop on Heavy Haul Best Practice book 42 exhibitors 27 countries represented Post conference technical tours and steam train excursion Profitable for RAC and sponsoring railways “Most successful IHHA STS ever staged”
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3 Emergent Themes Service Reliability Running On Time Running Longer and Heavier Technologies that Build Capacity Cold Weather Operation Conserving Fuel
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4 Service Reliability Modernize and standardize motive power Network wayside detectors Do frequent track measurements with overlays and predictive processing of infrastructure health data and wheel/rail “hot spots”. Use micro-alloyed wheels and rails Apply preventive rail grinding to conformal wheel/rail profiles Run at 10% underbalanced superelevation Maintain rail friction at < 0.4 Adopt phased-array or guided UT of rails, wheels, trucks and draft gear Adopt post-weld rail heat treatment, improved weld collars and shearing. Implement long term solutions to problem subgrade/embankments/rockfalls
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5 Running On Time Apply hot and cold wheel detectors to eliminate intermediate #1 brake test Implement automated brake shoe measurement and management systems Adopt ECP braking Implement driver advisory systems with intermediate timing points Do not run train densities exceeding 80% of line capacity, or 70% in extreme weather. Run at 10% underbalanced superelevation
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6 Running Longer, Heavier Trains Implement multiple–location distributed power Phase in ECP braking Implement train marshalling software Adopt high strength couplers or new designs Use matched set cars coupled with slackless drawbars to pack in car length Address optimal weight to tare ratio ahead of axle load increase. Address rail weld quality, bridges and weak embankment locations before increasing axle loads.
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7 Technologies that Build Capacity Build towards ECP/PTC standalone Adopt new truck-mounted braking systems Combine trains as “rakes” Adopt LEAN principles in planning train starts and in yard operations. Power different trains to similar HP/ton to improve homogeneity Adopt lower maintenance track components, such as “lift frogs” and premium turnouts. Install abrasion-resistant concrete ties Run at 10% underbalanced superelevation Design new captive services for 40 t axle loads Use rail lubrication/friction modification optimally.
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8 Operating in Extreme Cold Use harder, stronger wheels Specify higher K 1C for new rail installations Improve braking system diagnostics Adopt risk-based speed reductions, considering WILD readings, temperature and rail risk profile Avoid closed sections where water can be trapped. Reduce rolling stock shape complexity to reduce ice-buildup Ensure all operating levers have clearance for working with thick gloves. Manage rail neutral temperature
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Conserving Fuel Adopt driver advisory with dynamic display of optimal speeds, and time to next stop. Adopt orthodrome sheathing of cars Implement aerodynamic rules engine in intermodal loading software Maintain rail friction at < 0.4 9
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10 See you at ………..
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