A plain-English guide to common UK bus terms used by enthusiasts, operators, and in fleet lists - so you can add buses to BusOva with confidence.
The essentials (you’ll see these everywhere)
Bus talk can sound like a different language at first, especially when people start throwing around “PSVAR”, “low-floor”, or “fleet no”. Here are the core terms BusOva users bump into most.
This diagram shows the key external identifiers you’ll see on a UK double deck bus.
Operator - the company running the service (e.g. Brighton & Hove, Stagecoach).
Fleet number - the operator’s internal ID for the vehicle. This can change if a bus moves operator.
Registration - the DVLA number plate (e.g. SN12 ABC). Usually stays with the bus for life.
Single deck / Double deck - one level vs two levels of passenger seating.
Saloon - the passenger area (not the cab). Upper saloon = top deck.
Destination display - the front/side/rear screens showing route and destination.
Accessibility & boarding terms
Modern UK buses are designed around step-free boarding and wheelchair access, but you’ll still see older types and a lot of “accessibility jargon”.
Low-floor - step-free entry from the pavement (common from late 1990s onwards).
High-floor - requires steps to board (more common on older buses).
Kneeling - the bus lowers one side to reduce the step/bridge to the kerb.
Ramp - fold-out or slide-out access ramp for wheelchairs and mobility aids.
Wheelchair bay - dedicated space, typically opposite the front door.
PSVAR - Public Service Vehicle Accessibility Regulations (rules for accessibility features).
Bodywork, chassis, and “what bus is it?”
When people say “that’s a Gemini” or “that’s a StreetDeck”, they’re often mixing body, chassis, and model. Here’s how to separate them.
