Many families have only one person who drives. That is perfectly manageable, but it needs some thought, because the driver carries the whole journey alone. Long days behind the wheel are tiring, and tiredness builds quietly. A good plan keeps the driver fresh and gives everyone else a calmer trip. It is about being realistic rather than ambitious. Talk about it together before you leave, so that everyone understands why the plan looks the way it does.
Begin by shortening the days. Do not try to cover as much ground as two drivers could, and be honest about how much one person can do comfortably. Start early enough to avoid rushing, but not so early that the driver is tired before the first stop. Build in generous breaks and plan a slower day every now and then. A trip that is a little shorter on the map is often far better in memory.
Looking after the driver
Make the driver's comfort a priority. Adjust the seat and mirrors before setting off, keep water within reach and have a few light snacks nearby. Heavy meals make people drowsy, so choose something small and fresh at lunch. Fresh air and a bit of daylight help, and sunglasses reduce strain when the sun is low. Take a proper stretch at every stop. A comfortable driver is a safer and happier driver.
Passengers can do a great deal. They can read the map, choose the music, hand out drinks and keep the children entertained. They can also keep the driver company and notice the first signs of tiredness. If the driver yawns, drifts in thought or becomes irritable, it is time to stop. Make it easy for the driver to ask for a break. Do not argue about it: simply pull over somewhere safe and rest.
Finally, be flexible. If the driver wakes up feeling weary, change the plan and take the day more gently. An extra night somewhere on the way is better than pushing on and paying for it later. Some couples find that the passenger takes over the planning entirely, leaving the driver to concentrate on the road. Whatever works for you, the goal is the same: arrive safely, and still be on speaking terms.