are closed to traffic. Colors can also be combined, with a different color facing each direction: White and red or yellow and red — white or yellow for normal use in one direction, and red to indicate "do not enter" or "wrong way" in the other direction. Red-Clear Markers are primarily used to warn motorists they are going the wrong way; most people have never seen these because they show clear when approached in the correct direction, and only appear red to wrong-way drivers. White and black — white for marking lane restrictions (such as an HOV diamond) in one direction on a roadway that has "reversible" traffic flow, and black in the other direction when the markings do not apply. The current trend for lane markings is to intersperse retroreflective paint lines with reflectors as seen on the majority of American highways. This scheme only applies to the USA and Canada. Mexico, on the other hand, generally follows European usage. Usage of color in Japan If marked on the road, the color should match the purpose according to European counterparts. Also, fluorescent yellow markers are used to indicate temporary lanes during roadworks on major roads in Japan. Two other markers are adopted for use in Japan, taken from North American usage: White and red or yellow and red — white or yellow for normal use in one direction, and red to indicate "do not enter" or "wrong way" in the other direction. White and black — white for marking lane restrictions in one direction on a roadway that has "reversible" traffic flow, and black in the other direction when the markings do not apply. The design of the markers is diagonal. Usage of color in Thailand In Thailand, raised marker colors generally follow European usage but road markings follow the MUTCD. However, Thailand also adopted three uses of marker colors, one different from European usage: Blue — Used to mark the location of fire hydrants White and red or yellow and red — white or yellow for normal use in one direction, and red to indicate "do not enter" or "wrong way" in the other direction. White and black — white for marking lane restrictions in one direction on a roadway that has "reversible" traffic flow, and black in the other direction when the markings do not apply. Thailand's raised markers use the American design. Usage of color in