Road signs in South Korea

Warning signs are triangular with yellow backgrounds, red borders and black pictograms.

• 
  Crossroad
• 
  T-shaped intersection
• 
  Y-shaped intersection
• 
  Intersection to right
• 
  Intersection to left
• 
  Through street
• 
  Traffic merge from right
• 
  Traffic merge from left
• 
  Traffic circle / Roundabout
• 
  Railway crossing
• 
  Right curve
• 
  Left curve
• 
  Double bend, the first to the right
• 
  Double bend, the first to the left
• 
  Two-way traffic
• 
  Ascending hill (10%)
• 
  Descending hill (10%)
• 
  Narrow carriageway
• 
  Right lane decrease / End of right crawler lane
• 
  Left lane decrease / End of left crawler lane
• 
  Keep right
• 
  Pass left or right
• 
  Start of dual carriageway
• 
  End of dual carriageway
• 
  Traffic lights
• 
  Slippery road
• 
  Riverside road (quayside or river bank)
• 
  Bumpy road
• 
  Speed humps
• 
  Falling rocks
• 
  Loose chippings (retired on September 28, 2007)
• 
  Crosswalk (pedestrian crossing)
• 
  Children crossing ahead
• 
  Bicycles
• 
  Roadworks
• 
  Airplanes
• 
  Crosswind
• 
  Tunnel
• 
  Wild animals crossing
• 
  Other dangers

Prohibition signs are round with white backgrounds, red borders and black pictograms.

• 
  Road closed
• 
  No motor vehicles
• 
  No trucks
• 
  No buses
• 
  No motorcycles and mopeds
• 
  No motor vehicles, motorcycles and mopeds
• 
  No rotary tillers, tractors or handcarts
• 
  No tractors or rotary tillers (retired on September 28, 2007)
• 
  No oxcarts or horse-drawn carts (retired on September 28, 2007)
• 
  No handcarts (retired on September 28, 2007)
• 
  No bicycles
• 
  No entry
• 
  No straight ahead
• 
  No right turn
• 
  No left turn
• 
  No crossing traffic (retired on September 28, 2007)
• 
  No U-turn
• 
  No overtaking
• 
  No stopping or parking
• 
  No stopping or parking (retired)
• 
  No parking
• 
  No parking (retired)
• 
  Maximum weight limit (5.5t)
• 
  Height limit (3.5m)
• 
  Maximum width limit (2.2m)
• 
  Minimum safe distance between vehicles (50m)
• 
  Maximum speed limit (50km/h)
• 
  Minimum speed limit (30km/h)
• 
  No horn (retired)
• 
  Slow
• 
  Stop
• 
  Stop (retired)
• 
  Yield
• 
  No pedestrian crossing (retired on September 28, 2007)
• 
  No pedestrians (retired on September 28, 2007)
• 
  No pedestrians
• 
  No vehicles carrying dangerous substances / explosives
• 
  The traffic moving in the direction of the white arrow is given priority

Mandatory instruction signs are round with blue backgrounds and white pictograms.

• 
  Motor Vehicles Only
• 
  Motor Vehicles Only (retired)
• 
  Bicycles Only
• 
  Bicycles and Pedestrians Only
• 
  Traffic circle / Roundabout
• 
  Straight
• 
  Right Turn
• 
  Left Turn
• 
  Straight and Right Turn
• 
  Straight and Left Turn
• 
  Left Turn and Right Turn
• 
  U-Turn
• 
  Pass Left or Right
• 
  Pass Right
• 
  Pass Left
• 
  Follow Directions
• 
  Diversion / Detour
• 
  Honk horn (retired)
• 
  Mandatory use of snow tires or chains (retired)
• 
  Safety zone (retired)
• 
  Parking Lot
• 
  Bicycle Parking Lot
• 
  Pedestrians Only
• 
  Crosswalk (Pedestrian crossing)
• 
  Senior citizens crossing (In the Silver zone)
• 
  Children crossing (In the School zone)
• 
  Bicycles Crossing
• 
  One Way
• 
  One Way
• 
  One Way
• 
  Bus only Lane
• 
  HOV Lane

Supplementary signs are rectangular with white backgrounds and black text. Most of signs are only written in Korean.

• 
  District (Whole Downtown)
• 
  Date (Except for Sunday and Holidays)
• 
  Time
• 
  Time (You can park here within 1 hour)
• 
  Traffic light status (When the red light turned on)
• 
  Front through road
• 
  Safe speed (30 km/h)
• 
  Weather condition (foggy area)
• 
  Road condition (when snow or rain falls)
• 
  Traffic control (get in lane)
• 
  Traffic regulation (do not cross)
• 
  Vehicles limitation (only for sedans)
• 
  Sign explanation (tunnel length is 258m)
• 
  End (retired)
• 
  End (retired)
• 
  End
• 
  Tow-away zone

Direction and distance signs are rectangular with dark green backgrounds and white text. In urban areas, direction signs have dark blue backgrounds. The signs are normally written in Korean and English. In March 2010, Korea Expressway Corporation introduced a new type of direction sign for expressways.[1] Currently, Korea Expressway Corporation changes old direction signs to new ones on their expressways. This new type of direction sign is exit guide based sign and its typeface has changed from Sandol Doropyojipanche (Sandol traffic sign typeface, which can be seen on the distance sign and direction sign below) to Hangilche (Hangil typeface).

• 
  Distance sign
• 
  Direction sign (with name of junction)
• 
  New expressway direction sign (introduced in early 2010)

• 
  Asian Highway route shield
• 
  Expressway route shield
• 
  National Highway route shield
• 
  Local highway route shield
• 
  Urban Road route shield
• 
  Urban expressway route shield

Wikimedia Commons has media related to Road signs in South Korea.

• Korean Road Traffic Authority