
Making tractor routes becomes easy the more that you do them, everything is harder at first, so I recommend making a few for practice. If you chose the load vehicle option, it will add whatever you've put into the truck stop with your resource node or assembly line, if you don't have anything in the truck stop container, then nothing will load into the vehicle. that you want to keep supplied from the distant resource node.

The other two are inputs (green arrow pointing In) and output lines (yellow arrow pointing out), if you have the truck stop unloading the vehicle it will fill up an industrial sized container contained within the truck stop, and you can then put a conveyor belt line from the output (yellow arrow pointing out) to whichever container, constructor etc. You don't have to have both truck stops with fuel, but it may be necessary depending on how long your route is, you could have a second vehicle with a truck stop supplying this truck stop if you wish. The truck stops can either load or unload the vehicles, just press (E) to configure the truck stop (truck loading or truck unloading) and pick the correct pictogram there, you can also add a fuel line it's on the back of the truck stop on the left (green input arrow) a container with fuel in it (sold biomass, coal, packaged fuel) hooked up with a conveyor belt, or put in a direct supply line to keep it constantly full, it only holds 100 units, you can also check this by pressing (E) on the configure truck stop. You must hook up a power line to the truck stop or it won't work.

LOADING, UNLOADING, AND FUELING A VEHICLE Then press (V) again and Enable Autopilot (top of the wheel), there are blue arrowheads and pause markers, delete them if they are unnecessary, edit the pause markers to spend time at the truck stop ( I usually use about 9 sec) if you like the route, then you can hide the markers on the (V) wheel, if not you can clear the route and make it again until you do also with (V).

Build your truck stops at point A and point B, fabricate a vehicle (Tractor, Truck, Explorer) go up to either side of it and press (E) to drive it, then press (V) select record route (bottom right of the wheel), drive the route, it should be in a complete circle, point A to point B, then back to point A.
