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BRAKING PERFORMANCE OF FREIGHT TRAIN -- BRAKING RATIO AND BRAKING DISTANCE

Hideki Takami, Y Iwase

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Abstract

The braking distance of trains on JNR's narrow gauge lines is stipulated in a regulation as to be within 600m in any case. This must be a primary consideration in designing either vehicles or ground facilities. In order to have more traffic available, train speed must be increased and each train must be composed much longer. These are contradictory requirements for freight trains with conventional air brake equipment. These circumstances brought the study on this theme. This paper deals with (1) the survey of actual trains on their consist, their loading conditions and so on, (2) method of simulation for making up train consist, and (3) the result obtained therefrom.

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What this paper is about

The braking distance of trains on JNR's narrow gauge lines is stipulated in a regulation as to be within 600m in any case. This must be a primary consideration in designing either vehicles or ground facilities. In order to have more traffic available, train speed must be increased and each train must be composed much longer. These are contradictory requirements for freight trains with conventional air brake equipment. These circumstances brought the study on this theme. This paper deals with (1) the survey of actual trains on their consist, their loading conditions and so on, (2) method of simulation for making up train consist, and (3) the result obtained therefrom.

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Available abstract

The braking distance of trains on JNR's narrow gauge lines is stipulated in a regulation as to be within 600m in any case. This must be a primary consideration in designing either vehicles or ground facilities. In order to have more traffic available, train speed must be increased and each train must be composed much longer. These are contradictory requirements for freight trains with conventional air brake equipment. These circumstances brought the study on this theme. This paper deals with (1) the survey of actual trains on their consist, their loading conditions and so on, (2) method of simulation for making up train consist, and (3) the result obtained therefrom.

Key concepts: Train, Freight trains, Braking distance, Automotive engineering, Passenger train, Dynamic braking, Electronic brakeforce distribution, Threshold braking

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