# Road signs in Iran

Road signs in Iran are regulated in the INSO standard 14815-1. They generally follow the Vienna Convention on Road Signs and Signals.
Road signs are divided in three categories:
* Regulatory signs;
* Warning signs;
* Information signs.
Iran signed the Vienna Convention on Road Signs and Signals on November 8, 1968 and ratified it on May 21, 1976.
Freeways Roads and Expressways . Cities or Temporary signs such as detours and construction sites

## Warning signs

* Warning for bends
* Bend to the right
* Bend to the left
* Double bend, first to the right
* Double bend, first to the left
* Junction
* Crossroad with priority
* Side road with priority from the right
* Side road with priority from the left
* Roundabout
* Dangerous descent (10%)
* Dangerous climb (10%)
* Road narrows (both sides)
* Road narrows (right side)
* Uneven road
* Caution, speed bump
* Danger of skidding
* Two-way traffic
* Traffic light
* Animals (domesticated)
* Wild animals
* Crosswind
* Loose gravel
* Rockfall
* Pedestrian crossing ahead
* Children
* Caution for bicyclists
* Aircraft (landing corridor above road)
* Caution, tunnel
* Other hazard
* Caution, queues likely
* Be careful in winter
* Tramway
* Caution, fog likely
* Caution, accident black spot
* Soft verge
* Level crossing with gates or barriers
* Level crossing without gates or barriers
* Distance marker (150 m)
* Distance marker (100 m)
* Distance marker (50 m)
* Warning, single-track railway crossing
* Warning, multiple-track railway crossing

## Priority signs

* Stop
* Yield
* Priority road
* End of priority road
* Priority before the oncoming traffic
* Priority of the oncoming traffic

## Prohibitive or restrictive signs

* Road closed to all vehicles in both directions
* No entry
* No right turn
* No left turn
* No U-turn
* No cars
* No lorries
* No buses
* No tractors
* No motorcycles
* No cycling
* No animal-drawn vehicles
* No handcarts
* No motor vehicles
* No entry for motorised or animal-drawn vehicles
* No vehicles heavier than indicated
* No vehicles with axle weight greater than indicated
* No vehicles wider than indicated
* No vehicles taller than indicated
* No vehicles or combinations longer than indicated
* No vehicles carrying hazardous cargo
* No vehicles carrying water-polluting cargo
* Speed limit (80 km/h)
* End of speed limit
* No overtaking
* End of no-overtaking zone
* No overtaking by lorries
* End of no-overtaking zone for lorries
* No use of audible warning signals
* End of all prohibitions
* Stop to pay toll duty
* No stopping
* No parking
* No pedestrians
* No animal riders
* No vehicles towing trailers
* Safe distance (70 m)

## Mandatory signs

* Ahead only
* Turn right ahead
* Turn left ahead
* Turn right here
* Turn left here
* Keep right
* Keep left
* Ahead or right only
* Ahead or left only
* One way
* Roundabout
* Snow chains compulsory
* Minimum speed limit
* End of minimum speed limit
* Pedestrian zone
* Cycleway
* Route for animal riders (bridleway)

## Traffic regulation

* Freeway marker
* Expressway marker
* Road marker
* Street marker
* Avenue and boulevard marker
* Roundabout marker
* Sign ahead plaque (200 m, on top of the all signs)
* Sign ahead plaque (2 km, on top of the all signs)
* Different speed limitations in several roads
* Minimum speed in different lanes
* Bus lane ahead
* Vehicles carrying hazardous cargo turn left
* Directional sign
* Pedestrian crossing

## Temporary signs

* Road narrows (both sides)
* Uneven road
* Danger of skidding
* Two-way traffic
* Traffic light
* Roadworks
* Loose gravel
* Soft verge
* Other dangers

## Route shields

* Freeway
* Highway