How often do you have multiple trucks going the exact same route at the exact same time? If this were for transit between logistics hubs, this is just a less e

How often do you have multiple trucks going the exact same route at the exact same time? If this were for transit between logistics hubs, this is just a less efficient version of trains. The one advantage of trucks over trains is their flexibility - the truck can go anywhere, unless of course it doesn't have a driver. I suppose one driver could be driving both to one location and then keep going with an empty truck to a second location, but while that all is happening the one truck is not making any money. This only gets worse as you add more. It also doesn't really have any advantage over a double trailer.