Transport for London
Data & research
This glossary includes some of the most commonly-used terms in collision and casualty reporting, used throughout the data and research section of this website. Clicking on a term below will reveal an explanation of that term.
Powered two-wheeled vehicles |
Riders |
Severity |
Slight collision
A collision in which at least one person is slightly injured but no person is killed or seriously injured.
Taxi |
Vehicles |
