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TOUGHER TURNOUT TECHNOLOGY

T Judge

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Abstract

Every year North American railroads spend over $1 billion in component replacements, maintenance, and train delays and derailment costs stemming from turnouts and special trackwork. This article looks at new materials and new designs that are expected to add years to the life of the turnouts and help save money. A recent TTCI sponsored study identified impacts and the running surface deformations, as well as metal flow, as the most significant problems with most turnout designs. The article reviews the results of the study.

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What this paper is about

Every year North American railroads spend over $1 billion in component replacements, maintenance, and train delays and derailment costs stemming from turnouts and special trackwork. This article looks at new materials and new designs that are expected to add years to the life of the turnouts and help save money. A recent TTCI sponsored study identified impacts and the running surface deformations, as well as metal flow, as the most significant problems with most turnout designs. The article reviews the results of the study.

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Available abstract

Every year North American railroads spend over $1 billion in component replacements, maintenance, and train delays and derailment costs stemming from turnouts and special trackwork. This article looks at new materials and new designs that are expected to add years to the life of the turnouts and help save money. A recent TTCI sponsored study identified impacts and the running surface deformations, as well as metal flow, as the most significant problems with most turnout designs. The article reviews the results of the study.

Key concepts: Turnout, Derailment, Engineering, Forensic engineering, Transport engineering, Construction engineering, Mechanical engineering, Political science

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