Infrastructure

1) The fixed part of a transport system such as the road and the rail track, its environs (verges, footpaths and rail stations, etc), plus signs and signalling (traditional railway term for the infrastructure is 'track, terminals and signalling').

Indirect costs

1) Costs that are not directly attributable to an operation. For example, in road transport the costs of administering a vehicle, but not including the costs which relate directly to its operation (fuel, maintenance, etc).

Indictable offence

1) An offence which is sufficiently serious to be tried before a judge and jury in the Crown Court (ie enables heavier penalties to be imposed), for example causing death by reckless driving which could result in imprisonment on indictment.

Indemnity

1) A word that means security or protection against loss or financial burden. Also the liability for payment of compensation for loss, damage or injury.

Inclusive tour

1) Travel package (usually holiday) supplied by a tour operator - generally including flights, coach transfer and accommodation, and the services of a company representative to assist during travelling and at the destination.

In-cab computer

1) Extension of modern communications technology to the vehicle cab. In-cab computers provide direct communication between driver and office/central computer for passing messages/relevant data. Some provide print out (ie hard copy) facility for confirmation. Massive future trend predicted in this direction.