交通信號燈是指(zhi)揮交通(tong)運行(xing)的信號燈(deng)(deng),一般由(you)紅燈(deng)(deng)、綠燈(deng)(deng)、黃(huang)燈(deng)(deng)組(zu)成。紅燈(deng)(deng)表(biao)示(shi)禁(jin)止通(tong)行(xing),綠燈(deng)(deng)表(biao)示(shi)準許(xu)通(tong)行(xing),黃(huang)燈(deng)(deng)表(biao)示(shi)警(jing)示(shi)。
交通信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)分為(wei):機動(dong)車(che)信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)、非機動(dong)車(che)信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)、人行橫道(dao)(dao)信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)、方向指示(shi)指示(shi)燈(deng)(deng)(deng)(deng)(箭頭信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng))、車(che)道(dao)(dao)信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)、閃光警告信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)、道(dao)(dao)路與鐵路平(ping)面(mian)交叉道(dao)(dao)口信號(hao)(hao)(hao)燈(deng)(deng)(deng)(deng)。
在十(shi)字路口(kou),四面(mian)都懸掛著(zhu)紅(hong)、黃、綠(lv)、三色交(jiao)通(tong)(tong)信(xin)號(hao)燈(deng),它是(shi)不出聲的(de)“交(jiao)通(tong)(tong)警察”。紅(hong)綠(lv)燈(deng)是(shi)國際統一的(de)交(jiao)通(tong)(tong)信(xin)號(hao)燈(deng)。紅(hong)燈(deng)是(shi)停止(zhi)(zhi)(zhi)信(xin)號(hao),綠(lv)燈(deng)是(shi)通(tong)(tong)行(xing)信(xin)號(hao)。交(jiao)叉路口(kou),幾個方向來的(de)車都匯集在這(zhe)兒,有(you)的(de)要直行(xing),有(you)的(de)要拐彎(wan),到底讓(rang)誰先(xian)走,這(zhe)就是(shi)要聽(ting)從紅(hong)綠(lv)燈(deng)指揮。紅(hong)燈(deng)亮(liang),禁止(zhi)(zhi)(zhi)直行(xing)或(huo)左(zuo)轉(zhuan)彎(wan),在不礙行(xing)人和車輛(liang)情(qing)況(kuang)下,允(yun)許車輛(liang)右轉(zhuan)彎(wan);綠(lv)燈(deng)亮(liang),準許車輛(liang)直行(xing)或(huo)轉(zhuan)彎(wan);黃燈(deng)亮(liang),停在路口(kou)停止(zhi)(zhi)(zhi)線或(huo)人行(xing)橫(heng)道(dao)線以內,已經(jing)繼續通(tong)(tong)行(xing);黃燈(deng)閃爍時,警告車輛(liang)注意安全。
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