| 单词 | traffic indicator |
| 释义 | > as lemmastraffic indicator traffic indicator n. (a) a device, instrument, etc., which provides information on traffic (now typically on the concentration of road traffic); (b) a signalling device fitted to a motor vehicle for indicating an intended change in direction; = indicator n. 3g.Early signalling devices had various designs, such as that later known as the ‘trafficator’ (see trafficator n.), but later ones typically take the form of flashing lights.In quot. 1885 in the collocation railway traffic indicator.In quot. 1895 in figurative context, with reference to the behaviour of passengers on a train. ΚΠ 1885 Sunderland Daily Echo 25 Feb. 4/4 (heading) An electrical railway traffic indicator.] 1895 Railroad Gaz. 4 Jan. 11/3 There is an automatic, double acting, self-adjusting, and self-imposed traffic indicator in daily operation on the Alley Elevated of Chicago. 1907 Western Gaz. 20 Dec. 11/5 Traffic indicator for road vehicles. 1938 Derby Evening Tel. 8 Oct. 5/5 A kind-hearted Derby man makes a point of switching off traffic indicators which careless motorists fail to turn off when leaving their cars parked. 1970 Financial Times 11 May (Plessey Times section) 1/1 A thousand traffic indicators displaying speed and lane-closure information. 2006 T. Rowe Another Day, Another Dog xvi. 234 My first ever car was old enough to have the little illuminated arm-type exterior traffic indicators. < as lemmas |
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