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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.
 

Choose a letter below:

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  2. 0-9
  3. A
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  19. Q
  20. R
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  22. T
  23. U
  24. V
  25. W
  26. X
  27. Y
  28. Z
 

U

UITP

International Association of Public Transport.

Use period

A period of time determined by the ORR in relation to the Failure to use mechanism.

Use quota

A quota determined by the ORR in relation to the Failure to use mechanism.