Design consideration between vessel and vehicle : Coastal Engineering

Compare and contrast the design considerations of navigational channel to highway design, including the similarity and difference of vessel & vehicle characteristics, as well as construction aspect.

Navigational Channel
Take account of the size and shape of maneuverings spaces within the port, with particular reference to the stopping and swinging areas.
Must take account of the alignment and width of approach channels and port entrances.
Need to take account on water depth along the channel and how big vessel can enter into the channel.
Need to take account on wind flow direction, the harbour with wind direction perpendicular to the harbour will channel the vessel to the harbour easier.
The maintenance of navigational channel is much more easier than road since the navigational channel just need to be dredging in specific time basically one in 3 year.
Road Highway

Highway design must take account on human factor  include reaction time for braking and steering, visual acuity for traffic signs and signals, and car-following behavior.
Designer also must take account on vehicle considerations include vehicle size and dynamics that are essential for determining lane width and maximum slopes, and for the selection of design vehicles.
The design of the highway need to take account on the soil type and also the stability of the earth surface along the highway. This is important so that the life cycle of the highway is longer.
There is no need to take account on the wind flow along the highway since it is does not have big impact on the car movement.
The maintenance of the road is complicated since there will be a pothole on the road.
To ensure stability of vehicles when negotiating curves and grades and to provide adequate sight distances for undertaking passing maneuvers along curves on two-lane, the road geometry must be considered.

Car and vessel similarities
The turning radius of a vehicle is the radius of the smallest circular turn that the vehicle is capable of making. Both car and vessel has the turning radius, so it is important to take account of vessel turning radius when designing a navigational channel.