In the listings, bus bodywork type and layout details are indicated using the traditional British nomenclature consisting of one or more prefix letters, a number or series of numbers and one or more suffix letters.
Prefix letters indicating main body style:
A = Articulated
B = Single-deck Bus
C = Single-deck Coach
DP = Dual Purpose single-decker (coach seats in bus specification body)
H = Double-deck Bus (standard layout with central gangway upstairs)
L = Lowbridge Double-deck Bus having a sunken side gangway upstairs
O = Open-top double-decker
CO = Convertible open-top standard layout double-decker
Additional Prefix letters before the Main Body Type indicate a variation of main body style (N.B. initial prefix is omitted where variations do not apply):
C = Coach seating in a double-deck body
F = "Full-front" cab fitted to a body mounted on what is normally a half cab layout chassis
R = Raised rear portion at rear of single-decker (sometimes known as "1½ decker")
U = Utility (Second World War austerity) specification bodywork
Numbers indicate passenger capacity:
Single number (i.e. #) indicates total seating capacity
On double deckers wo numbers separated by "/" (i.e.#/#) indicate upper deck followed by lower deck seating capacities (where known)
After the seating capacity "+" followed by a number (i.e. +#) indicates number of standing passengers permitted where this exceeds the normal permitted UK limit (8 standees).
Suffix Letter Indicates Door Position:
F = Entrance/ exit as close to the front of the bus as the front wheels permit.
C = Centre entrance/ exit
R = Rear entrance/ exit
D = Dual doorway
T = Triple doorway
Additional Suffix Letter indicates additional body features:
D = Doors fitted to rear-only entrance/ exit doorway - only used with R suffix.