Editing Raised pavement marker (section)

===Usage of color===
====In Europe====
[[File: M9 motorway Carlow Ireland catseyes.jpg|thumb|M9 motorway in [[Carlow, Ireland]] with cat's eyes on the road surface and retroreflectors on barriers]]
In almost all European countries, such markers will include reflective lenses of some kind. Most appear white or gray during daylight; the colors discussed here are the color of light they reflect. Because of their inconspicuousness during the day, they are always used in conjunction with painted retro-reflective lines; they are never seen on their own.<ref>{{cite web|url=http://ebooks.wtbooks.com/static/wtbooks/ebooks/9781283492409/9781283492409.pdf |title=Road Infrastructure & Technology  |website=wtbooks.com}}</ref>

*White markers &mdash; for [[Road surface marking|lane markings]]. When used on [[dual carriageway]]s, motorways or one-way roads, they may illuminate red on the reverse, to indicate drivers are traveling the wrong way.
*Yellow or amber markers &mdash; These are found next to the central reservation (US: median) on motorways and dual carriageways and, in the [[Republic of Ireland]], are also used on hard shoulders.
*Red markers &mdash; These are found by the hard shoulder on motorways and at the edge of the running surface on other roads. They are also occasionally used to indicate a no-entry road and when travelling down the wrong way of the motorway/dual carriageway.
*Green markers &mdash; These are used where slip-roads (US: off-ramp) leave and join the main carriageway on dual carriageways. In some countries, they are also used across the entrances of minor roads or accesses onto major single carriageway roads or [[lay-by]]s.
*Blue markers &mdash; Are used to indicate the entrance to police reserved slip-roads (these do not lead anywhere, they are to allow police to park and monitor motorway traffic).

The exception to the above rules are:
*Fluorescent yellow markers &mdash; These are used to indicate temporary lanes during roadworks on major roads<ref>{{cite web |url=http://www.rural-roads.co.uk/m45/pic/m45_01sml.jpg |title=Photo |website=www.rural-roads.co.uk|format=JPG|access-date=2020-01-10}}</ref> and are glued to the road surface; they are never embedded in it. Any painted markings will be removed from the road surface if they contradict the markers. They are fluorescent yellow in color, so they stand out in the day, but reflect white light at night. Where used, they are much more numerous and dense than standards markers, as they are not used in conjunction with painted lines. They also appear yellow on the edges but reflect red on the left side or amber on the right{{Citation needed|date=January 2012}}

====In North America====
[[File: White raised pavement marker 01.jpg|thumb|A white retroreflective raised pavement marker (Stimsonite design)]]
[[File: Blue raised pavement marker.jpg|thumb|A blue raised pavement marker (for marking the location of fire hydrants)]]

*White markers &mdash; for [[lane|lane marking]]s or to mark the right pavement edge.
*Yellow or orange markers &mdash;  These separate traffic moving in opposite directions, or mark the left pavement edge on one-way roadways.
*Blue markers &mdash; Usually placed near the center of the roadway, offset to one side to mark the location of [[fire hydrant]]s on the shoulder or at the curb.
*Green markers &mdash; Usually used to indicate that [[emergency vehicle]]s can open gates to enter a [[gated community]].
*Red markers &mdash; Usually indicate areas that are closed to traffic.

Colors can also be combined, with a different color facing each direction:
*White and red or yellow and red &mdash; 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.<ref>California Department of Transportation (Caltrans) Standard Plan A20A & A20C</ref>
*White and black &mdash; white for marking lane restrictions (such as an [[High-occupancy vehicle lane|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 [[Retroreflector|retroreflective]] paint lines with reflectors as seen on the majority of American highways.

This scheme only applies to the US and Canada. Mexico, on the other hand, generally follows European usage.

==== In Japan ====
[[File:Chatter bar on orange line.jpg|thumb|A yellow raised pavement marker 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 &mdash; 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 &mdash; 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.

==== 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 &mdash; Used to mark the location of [[fire hydrant]]s
* White and red or yellow and red &mdash; 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 &mdash; 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.

====In the Commonwealth====
Countries formerly part of the [[British Empire]] are likely to retain a modified version of the [[English laws|British laws]] including the basic principles regarding road safety.

==== In Hong Kong ====
Hong Kong's raised marker colors are identical to those used in the United Kingdom.

* White &mdash; For lane markings and central reservation (US: median) on motorways and dual carriageways
* Red, yellow or amber &mdash; Lines that should not be crossed. Red is used for the left side of a dual carriageway, while yellow or amber is used for the right side of a dual carriageway.
* Green &mdash; A line that may be crossed, such as a slip road or lay-by

==== In Australia ====
[[File:Red raised pavement marker.jpg|thumb|A red raised pavement marker]]
[[File:Yellow raised pavement marker.jpg|thumb|A yellow raised pavement marker used to mark a [[Globe valve|stop valve]]]]

While Australian designs generally follow those in the US, the colors generally follow European usage. Differences from European usage include:
* Blue &mdash; Usually used to mark the location of [[fire hydrant]]s, as in North America
* Yellow &mdash; In addition to marking the median of freeways, in [[Victoria (Australia)|Victoria]] single yellow reflectors are used with broken yellow lines to denote [[trams in Melbourne|tram tracks]] on which motorized traffic can drive, and double yellow reflectors are used with solid yellow lines to denote tram tracks on which motorized traffic may not drive other than to cross.

==== In Latin America ====
For countries in Latin America, the colors of raised markers vary by country to country. For most countries, they tend to generally follow the European counterparts rather than North American counterparts, but in several countries of Latin America, such as Mexico, the usage of blue follows the North American counterpart.