<prompt> Translate the following text to EnglishWakati waendeshaji wa usafirishaji wanapotoa idadi ndogo tu ya vituo kwenye njia, huwa wanafunika njia hiyo kwa njia inayofanana zaidi na mfanyabiashara anayesafiri kuliko kufuata njia iliyowekwa baada ya kila kituo.  <response>: When carriers deliver to only a small number of stops on a route they tend to cover the route in a way more similar to a traveling salesman than following a fixed route past every stop. 