How this mod works differently from the other mod? Do your cars have collision, fuel usage, transport capacity? How do they unload stuff? The description is a bit lacking...

Hey @bladeofsharpness ! Thanks for your question. I was not even aware of the Klonan transports drones. The carts have collision detection to each other. If one car stops. The cars behind stop as well. They restart their engines as soon as the way is free again. Loading/unloading works by placing special tiles instead of a normal green arrow. If there is a chest beside that loading/unloading tile and if the user has set filters inside the logicart slots, then the logicart uses that filtered slots to load from/unload to that chest. Very simple, very cool ;-) I have added a short description to the mod page. And I will add a few more explaining screenshots.

After checking the https://mods.factorio.com/mod/Transport_Drones from Klonan I would say the main differences are that Logicarts paths are visual real tiles on the ground (you see the arrows) while the other mod uses virtual waypoints to guide the vehicles. The Logicarts are meant for short distances and complex compact layouts while the other mod can be used for medium/long distance transport. I guess that Logicarts layouts are easier to copy paste (blueprint) to another location while (I think) for the other mod you have to start from scratch to define new virtual waypoints. I would say there are different use cases for both mods. I will add a screenshot to show how to use logicarts for complex manufacturing situations.

//edit: I am not that sure about the waypoints of Klonan anymore. I will double check that.

I added some screenshots to show a simple load/unload example and the filtered trunk of a logicart.

Ok thanks, very interesting!
Can you precise how many can fit in a single tile, one?
They transport capacity, and do you have techs to upgrade it?
Their speed?
How much cost their tech initially?
How do you make them wait until unloaded?

Can you precise how many can fit in a single tile, one?

One per tile.

They transport capacity, and do you have techs to upgrade it?

Capacity 10 Slots. (Number of items depends on their stack size). See third screenshot on the left. There you see the trunk of one cart.

Their speed?

local CAR_SPEED = settings.global["logicarts-cart-speed"].value or 10 means normally 10 km/h but you can change it.

How much cost their tech initially?

Prerequisites are "logistics" tech and "engine" tech. The costs are 100 yellow, 100 red science packs. Thus quite cheap. So its an early feature.

How do you make them wait until unloaded?

They wait for 3 seconds inactivity. If you set 2 slots of the car via filter to "wood" slots. Then the car will wait until both slots are completely loaded OR 3 seconds of inactivity has passed. Extreme case: If you put one wood item in the box every 2 seconds, then it will take very long to finish the loading process ^^ But keep in mind there are several types of stop tiles for different situations. You can stop and load anything. You can stop and load only filtered slots. You can stop and unload only unfiltered stuff. You can stop and unload only filtered stuff. You can stop and unload stuff that is send as signal to the adjacent chest. This means you can create logistic requester chests by sending requested items via wire to a chest which is positioned directly next to a logicarts delivery stop.

There are many ways to solve problems with logicarts. I am quite a fan of that mod :-)

Ok, I'm sold and will try them! I don't like playing with mega-factories and prefer the hub approach, which is how real life works for logistic.

An Logicarts does not flood your FNEI with unnecessary Transport Drone recipes for each and every item in the game.