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Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment , emergency vehicle lighting is generally used by emergency vehicles and other authorized vehicles in a variety of ...
[5] The use of flashing lights and sirens is colloquially known as blues and twos, which refers to the blue lights and the two-tone siren once commonplace (although most sirens now use a range of tones). In the UK, only blue lights are used to denote emergency vehicles (although other colours may be used as sidelights, stop indicators, etc.).
The requirement was extended to light trucks and vans for the 1994 model year. Early studies involving taxicabs and other fleet vehicles found that a third high-level stop light reduced rear-end collisions by about 50%. Once the novelty effect wore off as most vehicles on the road came to be equipped with a CHMSL, the crash-avoidance benefit ...
Tips for viewing the northern lights "Go out at night," NOAA said. "And get away from city lights." The best aurora is usually within an hour or two of midnight (between 10 p.m. and 2 a.m. local ...
A runaway truck ramp on the A7 in Germany. A runaway truck ramp, runaway truck lane, escape lane, safety ramp, emergency escape ramp, or truck arrester bed is a traffic device that enables vehicles which are having braking problems to stop safely.
In the US, street lights using sodium vapor were first installed on a rural highway near Port Jervis, New York, in 1933. [1] In 1938, a study of sodium vapor light use at selected intersections in Chicago claimed that the new lighting had helped to reduce the number of accidents in those areas.
When light-duty trucks were first produced in the United States, they were rated by their payload capacity in tons: 1 ⁄ 2 (1000 pounds), 3 ⁄ 4 (1500 pounds) and 1-ton (2000 pounds). Ford had introduced the "One-Tonner" in 1938 to their line of trucks. [23] The "Three-quarter-tonner" appeared in the Ford truck lineup in 1939. [23]
The anchor plates measure 16 by 17.5 feet (4.9 by 5.3 m), with a thickness of 2.5 feet (0.76 m) and weigh 46,000 pounds (21,000 kg) each. Each anchor plate is connected to the respective main cable by two sets of nine eyebars , each of which is about 12.5 feet (3.8 m) long and up to 9 by 3 inches (229 by 76 mm) thick.
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