Technical Regulations on Marker Buoys Indicating the Boundary of River Ship Channels Adjacent to Sea Ship Channels

12:37, 10/07/2024

This is the content stipulated in Circular 08/2020/TT-BGTVT issued by the Ministry of Transport, which regulates the National Technical Standards for Inland Waterway Signaling in Vietnam.

Buoys indicating the boundaries of the river channel adjacent to the sea channel (A2) are defined by Circular 08/2020/TT-BGTVT as follows:

Placed on the right side of the river channel (A2.1)

Shape:
Signal and mark (if any) are cylindrical or triangular flags

Color:
Buoy, mark, and flag are red, with alternating red-white-red-white cylindrical stripes

Light:
One regular flashing light (2s per flash) with a 4s cycle, red light

Meaning:
Indicates "At the position where the signal is placed, it marks the right boundary of the river channel adjacent to the sea channel"

Regular Flashing ISO.(R) 4s

Figure 3: Buoy indicating the right boundary of the river channel adjacent to the sea channel, placed on the right side of the river channel (A.2.1)

Placed on the left side of the river channel (A2.2)

Shape:
Signal and mark (if any) are conical or triangular flags

Color:
Buoy, mark, and flag are green, with alternating green-white-green-white conical stripes

Light:
One regular flashing light (2s per flash) with a 4s cycle, green light

Meaning:
Indicates "At the position where the signal is placed, it marks the left boundary of the river channel adjacent to the sea channel".

Figure 4: Buoy indicating the left boundary of the river channel adjacent to the sea channel, placed on the left side of the river channel (A.2.2)

More details can be found in: Circular 08/2020/TT-BGTVT effective from November 1, 2020.

Thu Ba

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