A cute little game, very satisfying to watch! Reminds me of mini-metro / motorways, games I really like! However, yeah, I guess there is not much planning/strategy needed. (I get that it is hard to add a lot of systems in a jam). But maybe a simple way to add it would be: longest travel time for a car = score (where making this short is good), or like average travel time of the cars? A more complicated system could be road capacity or some traffic system thing. But who has time for that! Anyway, I think the art and general atmosphere were great, and I played through lots of days! I especially liked the car sprite, and it's semi-3d turning animations. Great touch!