[trainmew]

Yes, I know that. That now means you need a way for the skates to communicate with each other and maintain a safe distance from each other before they collide and obviously slower speeds. That bare concrete tunnel is now longer bare since you will need communication access points, fibre cables for redundancy, etc.

[VectorLock]

They're going to be running cables for lights. Its not much of a stretch to put in communication cabling as well.

It makes sense to have the skateboards fully connected as part of their 'autonomy.'