Widths in Bends

In bends the method outlined for straight sections will be followed for each point in the bend, but the following additional widths are included.

The following additional width is added (for each lane) in bends for the drift angle, which is based on section 3.1.6.2 from the PIANC guidelines

ΔW_DA = L²/aR_c

Where L = Length (overall) of vessel
a = factor based on ship type
4.5 if ship is tanker and dwt > 60,000 tonnes, or ship is bulk carrier and dwt is 40,000 tonnes
8.0 Otherwise
R_c = Bend radius

Additional Width for response time, which is from section 3.1.6.2 of the PIANC guidelines

ΔW_RT = 0.4B