[Retracted] Case Study on Berthing and Disembarking of Ships and Traffic Organization in Rugao Port of Nantong

Table 10

Standard of accompanying tug.

Region	Accompanying navigation scenario	Number of tugs equipped (ship)	Companion segment
Yangtze river 12.5 m deep	260 < length ≤ 300 meters of the ship	1	Full range
water channel below Nanjing	Ships with draft >11.5 m below Jiangyin bridge	1	Full range

Note. 1. The tugboats in this table are full-swing tugboats with power >2000 HP, speed >12 knots, and good maneuvering performance. 2. The number of tugboats accompanying each section and situation in this table is not cumulative.