It can be modeled as fluid flow in a naive case but it diverges * It is compressible * It involves intelligent agents The last part is hard for the 't

It can be modeled as fluid flow in a naive case but it diverges * It is compressible * It involves intelligent agents The last part is hard for the 'traffic is water' crowd to understand. Lots of folks will skip a trip or defer to another time. It is the mirror of the 'all roads fill to gridlock' phenomena. You cannot build your way out of bad traffic, you have to design it and it might be less capacity than when you started. Some components of traffic flow can be modeled as fluid flow, but traffic as a chaotic system cannot be.