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Project title

ADHERE: Evaluating variability in train driving under different adhesion conditions (T1159)

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Project Summary

A study to evaluate variability in train driving in adhesion conditions during the autumn leaf fall period.

Project Abstract

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Driving under low adhesion conditions during the autumn leaf-fall period is believed to lead to more variability in drivers taking power, train speed and braking applications than driving under ‘good’ adhesion conditions on a dry day outside of the autumn period. Greater driving variability under low adhesion conditions would mean that there is an opportunity to seek more consistency to improve performance and safety.

This study took OTDR data from West Midlands Trains’ Class 323 during autumn 2018. Analysis showed evidence that driver variability is greater under low adhesion conditions. The evidence is location dependent with certain locations on the Cross-City line showing greater variability. The research investigated variability in speed attained, how and when drivers take power, how and when drivers brake and use of manual sanding.

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