An individual who maliciously attempts to gain unauthorized access to a computer system.
Device for applying/releasing brakes on cars or locomotives separately from the air brakes, usually used like a parking brake to secure unattended equipment; a train braking device manually applied to prevent vehicle movement, or to provide emergency braking.
A manual signal used to govern the movement of trains. See also Signal, Hand.
A switch which can only be operated manually. See also Switch, Hand Operated. (NTSC)
People who have physical or mental impairments that substantially limit one or more major life activities. In the context of transportation, the term usually refers to people for whom the use of conventional transit facilities would be impossible or would…
The extent to which facilities are free of barriers and usable by mobile handicapped people, including wheelchair users.
Handicapped people who are unable to move about without assistance, for example, those confined to a wheelchair. (TRB)
Highways Advisory Radio
The total of any numeric data filed on a document or computer file. This total is then checked against a control total of the same field to facilitate accuracy of processing.
A Transportation Scheduling Software Package