Warning signs

In general, warning signs in post-Soviet states have a triangular shape with a red border and a white background, as in most European countries.

• Latvia uses warning signs with a thicker red border.
• Lithuania does not use the Tramway and Tram stop road sign due to the absence of tramways in its territory.

Road works and construction

• Road works and construction warning signs have a triangular shape with a red border and a white, amber, or yellow background. The Soviet Union formerly only used a white background on road works and construction warning signs. Today, only Armenia, Azerbaijan, Georgia, Kazakhstan, Kyrgyzstan, Latvia, and Lithuania still use a white background on these warning signs, while Belarus, Estonia, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan only use an amber background, and Moldova uses a yellow background, like most temporary warning signs.

Priority signs

• Armenia use both ԿԱՆԳ kang and STOP text in stop signs while most other post-Soviet states only use STOP text in stop signs regardless of the country's official language as well as in most European countries, English-speaking countries, territories and the rest of the world excluding some other Asian, Latin American countries.
• Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine and Uzbekistan use End of priority road sign with 5 thin black diagonal lines .
• Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Lithuania, Russia, Tajikistan and Turkmenistan, use Priority road and End of priority road signs with a rounded bright orange square and outlines with rounded corners.
• Estonia uses Priority road and End of priority road signs with a light yellow right-angle square and a right-angle square outline .
• Moldova and Ukraine use Priority road and End of priority road signs with a light rounded yellow square and outlines with rounded corners.
• Latvia uses a Give way sign with a thick red triangle , End of priority road sign with three thick black diagonal lines and light yellow square with right angles on it .
• Almost all post-Soviet states, except for Latvia and Georgia, use a long black arrow down and a short red arrow up on Give way to oncoming traffic signs , long white arrow up and a red short arrow down on Priority over oncoming traffic signs . Latvia has a different look on Give way to oncoming traffic and Priority over oncoming traffic signs so these signs look closer to the rest of Europe. Georgia uses the similar tactic as Latvia on on Give way to oncoming traffic and the Priority over oncoming traffic signs .

Prohibitory signs

Most prohibitory signs use a red circle or a red circle with a slash, as in the rest of Europe.

• Latvia uses prohibitory signs with a thick red circle.

Mandatory signs

• Road signs Turn right and Turn left use a 90-degree arrow or a straight arrow to the right and left, respectively. The Soviet Union formerly used a straight arrow to the right and left for Turn right and Turn left signs, respectively. Today, most post-Soviet states, with the exception of Azerbaijan, Lithuania and Turkmenistan only use the 90-degree arrow for Turn Right and Turn Left signs. However, the straight-arrow variant of these road signs may still be used in most post-Soviet states. In accordance with ГОСТ Р 52290-2004 in Russia and post-Soviet states, images of the signs Turn right and Turn left have been changed since 2006.^[34][35] In Ukraine, since April 2013, images of Turn right and Turn left signs have been modified by replacing straight arrows with 90-degree ones.^[36]
  • Estonia and Latvia use both straight and 90-degree arrows for Turn Right and Turn Left signs.
  • Azerbaijan, Lithuania and Turkmenistan continue to use the straight arrow for Turn Right and Turn Left signs, as they did during the Soviet era.

Special regulations signs

• In all post-Soviet states, a rectangular road sign with a long white arrow pointing right or left on a blue background designates the exit to a one-way road on road junctions. The arrow on the sign shows the direction of one-way traffic and prohibits movement opposite to the direction of the arrow. Unlike most European countries, rectangular one-way road signs are only placed in front of intersections. At T-junctions, these signs are installed at the exit from a secondary road to the main one-way road, most often in conjunction with a Give way traffic sign or sometimes with a Stop sign, whereas other European countries use Turn right ( and/or ) or Turn left ( and/or ) signs at these T-junctions. Additionally, this rectangular road sign can be installed at the X-junctions with a one-way road in conjunction with the Priority road or Give way sign. In the rest of Europe, road signs Go straight or turn right , Go straight or turn left or No left turn , No right turn are often installed in front of X-junctions with one-way roads.
  • Moldova uses a different version of a rectangular one-way road sign with the SENS UNIC text in black inside the arrow , likewise in Romania , but it has a smaller SENS UNIC text compared to the Romanian one.
• In post-Soviet states, the sign indicating the end of a one-way road has a crossed-out up arrow inside the square . However, Lithuania uses a different sign to mark the end of a one-way road, and is only used if a one-way road meets a two-way road at an intersection. The Lithuanian sign has an up arrow on the right and a down arrow on the left . Signs marking the end of a one-way road are not found anywhere else in Europe and Asia in this form.
• Armenia, Azerbaijan, Belarus, Georgia, Kyrgyzstan, Lithuania, Russia, Tajikistan, Turkmenistan, Uzbekistan and Ukraine use a green background on the Motorway sign. Lithuania formerly used only green background on the Motorway sign; now it uses both green and blue background on the Motorway sign, which makes it the only post-Soviet state to use both green and blue background on the highway sign and at the same time one of the few countries in Europe to use these two background colors on this sign.
  • Estonia uses a blue background on the Motorway sign as other European countries do, but no roads fall under motorway regulations and it is not used.
  • Latvia does not use the Motorway road sign due to the absence of motorways in its territory.
  • It was already that:
  • Lithuania does not use the Tramway and Tram stop road sign due to the absence of tramways in its territory.
• Most post-Soviet states use the red cross on Hospital and First aid road signs, while Belarus uses the green cross instead, and Tajikistan uses the red crescent as well as in other Muslim countries.^[5][12][25] From 2002 to 2021, Ukraine formerly used a white cross inside a green square on these medicine-related road signs.^[37][38]

Indication signs

• Kilometer signs are used to indicate the distance from the place of its installation to the start or end point of the road and are set after 1 km. Such signs usually have from one to four digits. A maximum of 4 digits on kilometer signs are used on highways in Russia and Central Asian countries, whose length exceeds 1000 kilometers, due to the huge area of these countries. In the Baltic States, Belarus, Ukraine, Moldova, Azerbaijan, Armenia and Georgia, a maximum of 3 digits are used on kilometer signs.