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Glossary

Browse the A-Z below for some rail-specific terms that are used in this website, together with their meanings.
 

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M

MAA

Moving annual average - the average of the last 13 four-week time periods.

Maintenance

Section 82(5) of the Railways Act 1993 provides that, in that section, “maintenance” includes the detection and rectification of any faults.

MHSWR

Management of Health and Safety at Work Regulations

MIP

Management incentive plan