The risk -assessment models are a powerful tool to prevent accidents or incidents in the Industry.
For example in the Oil and Gas Industry is usually to celebrate a HAZOP meeting between all engineering disciplines involved to discuss the position for example of all equipments of plant. Each equipment has an impact at the area where it was installed in case of a fail.
There are commercial software to simulate the radiation of each equipment in a plant of gas.
Remember that the total
velocity of the motion is the vector sum of the velocity you would have in
still water and the stream. Always place the vectors carefully to be able to
come up with an accurate sum vector.