Traffic light -- Wikipedia
Traffic lights, traffic signals, or stoplights
-known also as robots in South Africa are signalling devices positioned at road intersections,
pedestrian crossings, and other locations in order to control flows of traffic.
Traffic lights consist normally of three signals,
transmitting meaningful information to drivers and riders through colours and symbols
including arrows and bicycles.
The regular traffic light colours are red, yellow,
and green arranged vertically or horizontally in that order.
Although this is internationally standardised,
variations exist on national and local scales as to traffic light sequences and laws.
The method was first introduced in December 1868 on Parliament Square in London
to reduce the need for police officers to control traffic.
Since then, electricity and computerised control
has advanced traffic light technology and increased intersection capacity.
The system is also used for other purposes, for example,
to control pedestrian movements, variable lane control
(such as tidal flow systems or smart motorways), and railway level crossings.
-known also as robots in South Africa are signalling devices positioned at road intersections,
pedestrian crossings, and other locations in order to control flows of traffic.
Traffic lights consist normally of three signals,
transmitting meaningful information to drivers and riders through colours and symbols
including arrows and bicycles.
The regular traffic light colours are red, yellow,
and green arranged vertically or horizontally in that order.
Although this is internationally standardised,
variations exist on national and local scales as to traffic light sequences and laws.
The method was first introduced in December 1868 on Parliament Square in London
to reduce the need for police officers to control traffic.
Since then, electricity and computerised control
has advanced traffic light technology and increased intersection capacity.
The system is also used for other purposes, for example,
to control pedestrian movements, variable lane control
(such as tidal flow systems or smart motorways), and railway level crossings.
声明:以上文章均为用户自行添加,仅供打字交流使用,不代表本站观点,本站不承担任何法律责任,特此声明!如果有侵犯到您的权利,请及时联系我们删除。
文章热度:★★★☆☆
文章难度:★★☆☆☆
文章质量:★★★☆☆
说明:系统根据文章的热度、难度、质量自动认证,已认证的文章将参与打字排名!
本文打字排名TOP20
登录后可见
用户更多文章推荐
- 中国邮递员问题 -- Wikipedia2024-02-19
- 旅行推销员问题 -- 维基百科2024-01-30
- 巡洋护卫舰 —— 维基百科2024-01-04
- Roman Empire -- Wikipedia2023-06-27
- Crested goshawk -- Wikipedia2023-06-21
- 天秤座——维基百科2023-02-11
- 天坛座——维基百科2023-02-11
- 平面设计——维基百科2023-02-11
- Integral -- Wikipedia2023-02-01
- Turochamp -- Wikipedia2022-12-08
- Windows 2.1x -- Wikipedia2022-10-16
- Binary tree -- Wikipeida2022-08-11
- 事件驱动程序设计——维基百科2022-07-31
- Pyramid of Khentkaus I -- Wiki2022-07-29
- Messinian salinity crisis-WIki2022-05-14
- 汇丰银行公馆旧址——维基百科2022-03-27
- Mathematical problem-Wikipedia2022-03-27
- SCOTUS - wikipedia2022-03-27
- Confucius -- Wikipedia2021-12-29
- Silicon carbide--Wikipedia2021-12-29