Configuration of axles

1) Term used in goods vehicle operations to describe both the type, number and layout of axles on a vehicle/trailer (eg 4 x 2 describes a four-wheeled two-axle vehicle of which only two wheels are driven; 6 x 4 describes a six-wheel, three-axle vehicle with two driven axles - ie 4 wheels driven; 3+2 describes a three-axle tractive unit with a tandem, ie 2-axle semi-trailer, while 2+3 describes the opposite, a two axle tractive unit with a tri-axle semi-trailer).

Conduct of driver

1) Re PSV/PCV operations, legal requirements relating to drivers whereby they must conduct themselves in an orderly and civil manner.

Condition monitoring

1) Diagnostic scheme whereby, for example, monitoring of engine condition by analysis of lubricants allows for accurate pinpointing of high levels of wear - ie above normal limits.

Composite trailer

1) In legal terms, a road trailer comprising an articulated semi-trailer mounted on a towing dolly. As such this counts as only one trailer when determining the number of trailers a goods vehicle may draw under the C&U regulations.

Component

1) A part, ingredient, or sub-assembly that is both a component to a higher level part, and a parent part to other components. (Source: ILT Supply-Chain Inventory Management SIG)

Compensated rest

1) Rest taken by a goods vehicle driver operating under EU rules to compensate for reduced daily or weekly rest periods as required by law.