HOME > How to Use > Weather-related Guidelines
||TSD message response|
25m/s and over
||Visibility under 250m
Visibility under 100m
Visibility under 30m
Visibility under 10m
When traffic control is advised
||Visibility under 100m
*Bases of operation restrictions
-The Enforcement Regulation Article 19 Section 2 of The Road Traffic Act and the Enforcement Ordinance Article 5 Section 2 of the Motorway Act are applicable.
-The Traffic Control Policy Council of the Incheon Bridge convened on Nov. 11, 2009 to discuss policy issues in the event of bad weather conditions and the resultant decisions are reflected.
The Enforcement Regulation Article 19 Section 2 of The Road Traffic Act
Notwithstanding the Section 1, in case of bad weather conditions due to rain, for, or snow, vehicle operators shall heed the following requirements:
1. The vehicle shall travel at a speed 20% less than the maximum speed allowed,
A. when the road pavement is wet due to rain, or
B. when there is less than 20mm of snow on the pavement.
2. The vehicle shall travel at a speed 50% less than the maximum speed allowed,
A. when visibility is below 100 meters due to heavy rain, snow, or fog, or
B. when the road is slippery due to the formation of ice on the pavement, or
C. when there is more than 20mm of snow on the pavement.
The Enforcement Ordinance Article 5 Section 2 of the Motorway Act
Motorway traffic can be halted as an emergency measure in the following situations:
1. When snow on any part of the road is more than 10cm high, or
2. When snow falls on any part of the road at a rate more than 3cm per hour for more than 6 consecutive hours, or
3. When the average speed of winds measured for 10 minutes on a bridge exceeds 25m/s (for a double-deck bridge, when the average speed of winds measured for 10 minutes on the top deck exceeds 20m/s), or
4. When a natural disaster, a multiple crash, or a major vehicle accident accompanying the danger of spillage of hazardous materials, blocks traffic in any particular section of the road, contributes to a noticeable increase in traffic congestion, or poses a clear threat to other vehicles.