traffic control line
21Line source — A line source is a source of air, noise, water contamination or electromagnetic radiation that emanates from a linear (one dimensional) geometry. The most prominent linear sources are roadway air pollution, aircraft air emissions, roadway noise,… …
22traffic jam — noun a number of vehicles blocking one another until they can scarcely move • Syn: ↑snarl up • Hypernyms: ↑crush, ↑jam, ↑press • Hyponyms: ↑gridlock * * * noun, pl ⋯ jams [count] …
23Control (management) — Controlling is one of the managerial functions like planning, organizing, staffing and directing. It is an important function because it helps to check the errors and to take the corrective action so that deviation from standards are minimized… …
24Line technician — A line technician (commonly known as a line tech, gas jockey or ramp rat) is someone who works on an airport ramp at a fixed base operator (FBO), a business that typically handles general aviation aircraft as opposed to commercial traffic. Their… …
25line load control — Attendant s ability to temporarily restrict least important stations from initiating outbound calls during excessive traffic load or emergency conditions …
26Right- and left-hand traffic —   countries with right hand traffic …
27Communications-based train control — CBTC deployment in Metro de Madrid, Spain …
28Road traffic safety — Sidewalks, curbs and traffic signals in Maryland, United States …
29Air Traffic Organization — Infobox Government agency agency name = Air Traffic Organization logo width = 200px logo caption = FAA Logo formed = November 2003 preceding1 = dissolved = superseding = jurisdiction = Federal government of the United States employees = 35,000+… …
30Unusual uses of traffic lights — Unusual uses of traffic lights, as used in various regional locations, may for example include traffic lights used in a non standard fashion, or in a non standard arrangement, or for specific traffic. Alternating Alternates (Flashing Lights) In… …
