Surprisingly, it isn't always the case that each driver optimizing their own route will lead to a global optimum - see Braess's paradox. "If every driver takes

Surprisingly, it isn't always the case that each driver optimizing their own route will lead to a global optimum - see Braess's paradox. "If every driver takes the path that looks most favourable to them, the resultant running times need not be minimal." [0] [0] https://en.wikipedia.org/wiki/Braess's_paradox https://en.wikipedia.org/wiki/Braess's_paradox