Cov ntaub ntawv cuam tshuam, tseem hu ua retroreflective lossis rov qab cov ntaub ntawv rov qab, feem ntau pom nyob rau hauv lub neej niaj hnub, xws li ntawm khaub ncaws, khau, tub ceev xwm vests, cov paib txoj kev, cov cim kab, kab sib tsoo, thiab daim ntawv tsav tsheb. Cov khoom no tsis tawm lub teeb ntawm lawv tus kheej, tab sis lawv pom los ntawm qhov deb vim lawv cov khoom muaj zog muaj zog.
Lub hom phiaj: Nrog kev nce qib ntawm lub neej, ntau tus neeg xaiv tawm mus taug kev thaum hmo ntuj, ua rau muaj kev txhawj xeeb txog kev nyab xeeb hauv cov chaw pej xeem. Reflective khaub ncaws tsim rau hmo ntuj pom tau tshwm sim, siv ntau yam khoom siv thiab cov thev naus laus zis. Cov no tuaj yeem hloov kho rau hauv cov khaub ncaws hnav thiab cov khoom siv niaj hnub raws li cov neeg siv khoom nyiam.
Khoom Xaiv: Rau kev ua kis las sab nraum zoov, cov ntaub mos muag feem ntau siv vim lawv lub teeb yuag thiab xis nyob, ua rau lawv zoo tagnrho rau cov ris tsho hnav. Qhov no ua kom pom kev pom nyob rau hauv cov teeb pom kev qis, txhim kho kev nyab xeeb zoo.