One-way Traffic of People
Sometimes there is one-way walking for people, for smooth traffic flow, or in the case of entrance checks (such as ticket checks) and exit checks (e.g. the check-out in a shop). They may be outdoors, e.g. an extra exit of a zoo, or in a building, or in a vehicle, e.g. a tram.
In addition to just signs, there may be various forms and levels of enforcement, such as:
- personnel
- a turnstile; turnstile jumping is possible
- a High Entrance/Exit Turnstile (HEET)
- a door or gate that can only be opened from one side (a manual or electric lock, or simply a door that is pushed open and has no doorknob on the other side), or automatically opens from one side; with help from someone on the other side, it can usually conveniently be passed in the "wrong" direction. Examples:
- entrance of a shop
- an emergency exit; it may activate an alarm, useful both for proper and improper use of the door
- an escalator; the escalator can be passed in opposite direction, climbing up or down the stairs faster than it moves
- a one-way revolving door
Sometimes a "soft" traffic control system is supported by personnel keeping an eye on things.
Sometimes a door or gate can be opened freely from one side, and only with a key or by inserting a coin from the other side (house door, door with a coin slot, e.g. giving entrance to a pay toilet). The latter can be passed without paying when somebody else leaves, and by multiple persons if only one pays (as opposed to a coin-operated turnstile).
Read more about this topic: One-way Traffic
Famous quotes containing the words traffic and/or people:
“If you don’t have a policeman to stop traffic and let you walk across the street like you are somebody, how are you going to know you are somebody?”
—John C. White (b. 1924)
“All day long the machine waits: rooms,
stairs, carpets, furniture, people
those people who stand at the open windows like objects
waiting to topple.”
—Anne Sexton (1928–1974)