They are fast as giving you an answer but cannot tell you when are at the optimum solution. You need some termination rule to stop the algorithm such as time spent running, number of iterations etc.<p>We [1] have used a heuristic [2] method to solve vehicle routing for a client where optimum isn&#x27;t important but certain features of the solution as speed of the answer are.<p>[1] <a href="http:&#x2F;&#x2F;www.biarri.com" rel="nofollow">http:&#x2F;&#x2F;www.biarri.com</a><p>[2] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Guided_Local_Search" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Guided_Local_Search</a>