In my experience, many veteran taxi drivers simply take (sometimes longer or more congested) routes, just because they are used to them and think they are bette

In my experience, many veteran taxi drivers simply take (sometimes longer or more congested) routes, just because they are used to them and think they are better. In some cases, I've noticed the difference of a fare as much as 30%. I always have a hard time explaining them that other route is shorter, because they know better (than me or GPS). For this reason, I now first call taxi firms that use GPS on all cars.