> Home > Glossary

Glossary

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

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | All

JPIP

Joint Performance Improvement Plan: A less prescriptive successor to Local Output Commitments. A JPIP is based on a two-way obligation of Network Rail and the train operating company (TOC) to improve performance.