An obvious comparison is probably the habitual usage of GPS navigation. Some people blindly follow them and some seemingly don't even remember routes they routinely take.
another thing ive done a few times for long journeys is to write down on paper a list of the road numbers and then beside each number write the distance that needs to be travelled on that road. just do the route in an app before you leave and copy the details from that. having only the list to work off definitely forces you to keep your brain more active