Picking the best primary key + numbering system

Question

We are trying to come up with a numbering system for the asset system that we are creating, there has been a few heated discussions on this topic in the office so I decided

Answer 1

Another thing to keep in mind is that if you're importing alot of data into this system, you may find out that things like Road_Number are not as unique as you thought, and there may be operational roadblocks to fixing the problem (repainting road signs, etc.) .