交通信號燈是指揮(hui)交通(tong)運行(xing)的(de)信號燈(deng),一般由紅燈(deng)、綠(lv)(lv)燈(deng)、黃(huang)(huang)燈(deng)組成。紅燈(deng)表示(shi)(shi)禁止通(tong)行(xing),綠(lv)(lv)燈(deng)表示(shi)(shi)準許(xu)通(tong)行(xing),黃(huang)(huang)燈(deng)表示(shi)(shi)警(jing)示(shi)(shi)。
交通信(xin)(xin)號(hao)燈(deng)(deng)分為:機動(dong)(dong)車信(xin)(xin)號(hao)燈(deng)(deng)、非機動(dong)(dong)車信(xin)(xin)號(hao)燈(deng)(deng)、人行橫道(dao)(dao)信(xin)(xin)號(hao)燈(deng)(deng)、方向指示指示燈(deng)(deng)(箭頭信(xin)(xin)號(hao)燈(deng)(deng))、車道(dao)(dao)信(xin)(xin)號(hao)燈(deng)(deng)、閃光(guang)警(jing)告信(xin)(xin)號(hao)燈(deng)(deng)、道(dao)(dao)路與鐵路平面交叉(cha)道(dao)(dao)口(kou)信(xin)(xin)號(hao)燈(deng)(deng)。
在(zai)十字路(lu)口,四面都懸(xuan)掛著紅(hong)(hong)、黃、綠(lv)、三色交通(tong)信(xin)號(hao)燈(deng)(deng)(deng)(deng)(deng)(deng),它是不出(chu)聲的“交通(tong)警察”。紅(hong)(hong)綠(lv)燈(deng)(deng)(deng)(deng)(deng)(deng)是國際統一的交通(tong)信(xin)號(hao)燈(deng)(deng)(deng)(deng)(deng)(deng)。紅(hong)(hong)燈(deng)(deng)(deng)(deng)(deng)(deng)是停(ting)(ting)止(zhi)信(xin)號(hao),綠(lv)燈(deng)(deng)(deng)(deng)(deng)(deng)是通(tong)行(xing)(xing)(xing)信(xin)號(hao)。交叉路(lu)口,幾個方向來的車(che)都匯集在(zai)這(zhe)兒,有的要直行(xing)(xing)(xing),有的要拐彎(wan),到底讓誰先走,這(zhe)就是要聽從紅(hong)(hong)綠(lv)燈(deng)(deng)(deng)(deng)(deng)(deng)指揮。紅(hong)(hong)燈(deng)(deng)(deng)(deng)(deng)(deng)亮,禁止(zhi)直行(xing)(xing)(xing)或左(zuo)轉(zhuan)(zhuan)(zhuan)彎(wan),在(zai)不礙行(xing)(xing)(xing)人(ren)和車(che)輛(liang)情況下,允(yun)許(xu)車(che)輛(liang)右轉(zhuan)(zhuan)(zhuan)彎(wan);綠(lv)燈(deng)(deng)(deng)(deng)(deng)(deng)亮,準許(xu)車(che)輛(liang)直行(xing)(xing)(xing)或轉(zhuan)(zhuan)(zhuan)彎(wan);黃燈(deng)(deng)(deng)(deng)(deng)(deng)亮,停(ting)(ting)在(zai)路(lu)口停(ting)(ting)止(zhi)線或人(ren)行(xing)(xing)(xing)橫(heng)道(dao)線以內,已經繼續通(tong)行(xing)(xing)(xing);黃燈(deng)(deng)(deng)(deng)(deng)(deng)閃爍(shuo)時,警告(gao)車(che)輛(liang)注(zhu)意安(an)全。
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