Use Of English Test 4 – Traffic Lights

The first traffic signal was invented by a railway signaling engineer. It was installed out ofoutdoorsoutoutside the Houses of Parliament in 1868. It lookedseemedresembledshowed like any railway signal of the time, and was operated by gas. ThereforeHoweverAlthoughDespite, it exploded and killed a policeman, and the accident disappointedforbadediscouragedavoided further development until cars became common.

RecentModernNewLate traffic lights are an American invention. Red-green waysmethodssystemsmeans were installed in Cleveland in 1914. Three-color signals, operated byinthroughwith hand from a tower in the heartfocushalfwaymiddle of the street, were installed in New York in 1918. The earlyfirstoriginalprimary lights of this type to appearhappenbecomeshow in Britain were in London, on the junction between St. James’s Street and Piccadilly, in 1925. Automatic signals were installed athein ain the year later.

In the past, traffic lights were particularspecialrarevarious. In New York, some lights had a statue on top. In Los Angeles the lights did not just changevaryaltermove silently, but would ring bells to raisewakeget uprise the sleeping motorists of the 1930s. These are gone and have been reproducedreplacedremainedremoved by standard models which are universally adopted.