Sure, but if you're evaluating the risk of a discretionary trip the crude per mile safety of the transport mode (multiplied by the specific trip mileage and adj

Sure, but if you're evaluating the risk of a discretionary trip the crude per mile safety of the transport mode (multiplied by the specific trip mileage and adjusted by any other risk factors you're aware of) is still the correct starting point for estimation and the crude per trip estimate across all journeys undertaken by that mode of transport raised upthread still unambiguously the wrong one (especially if there are vast differences in average trip lengths like between aeroplanes and cars)