Editing Route number (section)

=== Single-letter abbreviations ===
* "[[A road (disambiguation)|A]]" may mean "'''motorway'''" in a number of countries (ex. ''[[Autoroutes of France|Autoroute]]'' in France or ''[[Autostrada]]'' in Italy and Romania, or ''[[Autobahn]]'' in Germany), usually the largest and highest-quality roadways in the country. Is also used for primary roads in the UK. It also means a road of national significance in Australia{{citation needed|date=September 2024}} and the United Kingdom.
* "[[B road (disambiguation)|B]]" roads in the United Kingdom are distributor roads which have lower traffic densities than the main trunk roads, or A roads. In certain Australian states, a B road is a road of state significance.{{citation needed|date=September 2024}}
* "[[C road (disambiguation)|C]]" may mean county in the US and means a connecting route that connects two places in [[Victoria, Australia|Victoria]], [[Tasmania]] or the [[Northern Territory]].  Means "Circle" or "Circular road" in Japan. 
* "[[D road (disambiguation)|D]]" may mean "départementale" in France or "dálnice" in Czechia and "diaľnica" in Slovakia (=long distance roads, dálka=(long) distance)
* "[[E road (disambiguation)|E]]" may mean "European" road, or "Expressways" in Japan, Zimbabwe
* "[[F road (disambiguation)|F]]"
* "[[G road (disambiguation)|G]]" may be used for a [[China National Highways|national highway or freeway in China]]
* "[[H road (disambiguation)|H]]" may mean "Hawaiian Interstate" in the US
* "[[I road (disambiguation)|I]]" may mean "Interstate" in the US
* "[[J road (disambiguation)|J]]"
* "[[K road (disambiguation)|K]]" may be used for a state highway in [[Kansas]] in the US or ''Kreissstraße'' in Germany
* "[[L road (disambiguation)|L]]" may mean "local" route in Ireland or ''Landesstraße'' in Germany
* "[[M road (disambiguation)|M]]" used for motorways in the United Kingdom, Ireland and Australia, metropolitan routes in South Africa, municipal roads in Portugal, and also used for [[state highway]]s in Michigan in the US
* "[[N road (disambiguation)|N]]" may mean "national" road or for state highways in Nebraska
* "[[O road|O]]" may mean "Otoyol" in Turkey
* "[[P road (disambiguation)|P]]"
* "[[Q road|Q]]"
* "[[R road (disambiguation)|R]]" may mean "regional" route in South Africa, Ireland, Portugal and Ukraine or "ring" road, "rychlostní silnice" in Czechia or "rýchlostná cesta" in Slovakia ("rychlost" = velocity)
* "[[S road (disambiguation)|S]]" may mean expressways in Austria ("Schnellstraße") and Poland ("droga ekspresowa") or "Shengdao/Provincial Highways" in China
* "[[T road (disambiguation)|T]]" T roads in Malaysia are roads in Terengganu; in some parts of the U.S., they are township roads; In Estonia, T is the official prefix for national routes; "territorial" roads in Ukraine; in Italy T is used for tunnels (''traforo'') when separately classified, like the [[Great St Bernard Tunnel]]
* "[[U road (disambiguation)|U]]" may mean "unclassified" road; also used in Utah routes in the US
* "[[V road (disambiguation)|V]]"
* "[[W road (disambiguation)|W]]"
* "[[X road (disambiguation)|X]]" may mean "Xiandao/County Highways" in China
* "[[Y road (disambiguation)|Y]]" may mean "Xiangdao/Town Highways" in China
* "[[Z road (disambiguation)|Z]]"