<prompt> Translate the following text to EnglishWakati unaohitajika kuendesha njia ni fasta, na muda wa kuendesha inawakilisha uwiano mkubwa wa gharama ya jumla katika quintiles chini ya watu wengi.  <response>: The time required to drive the route is fixed, and driving time represents a greater proportion of total cost in the less densely populated quintiles. 