We do not seek a good solution to our problem.
We go for the best one.
Dispatchers sitting in control centres need to quickly find re-routing and re-scheduling solutions in order to recover from critical situations and regain punctuality. Unawares, they are actually solving an optimization problem, and a one of a very complicated nature. Optimization is exactly about this: having to choose among a possibly extremely large number of solutions, and pick out the best one. While human dispatchers use experience and intuition, computers must rely on mathematics to do the job.