Estimate driving time including rest breaks and road type mix.
Splitting the route by road type gives a far better estimate than a single average, because motorway and rural speeds differ by nearly half. Rest breaks accrue every two hours of moving time. Fatigue-related risk rises sharply after two hours of continuous driving, which makes the break time a safety requirement rather than a comfort allowance.
Driving Time
Moving time = motorway distance ÷ motorway speed + other distance ÷ other speed
Moving time = motorway distance ÷ motorway speed + other distance ÷ other speed Splitting the route by road type gives a far better estimate than a single average, because motorway and rural speeds differ by nearly half. Rest breaks accrue every two hours of moving time.
Fatigue-related risk rises sharply after two hours of continuous driving, which makes the break time a safety requirement rather than a comfort allowance.
This calculator takes 5 inputs: Distance, Share on motorway, Motorway average speed, Other road average speed, Rest break per two hours. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.