itch.io

This is what the sign looks like and on the road there are usually multiple arrows pointing in the same direction (45deg angle) before you can't go any further. (could also be a blue sign in Europe). 

And since the game only shows what's on the road, then I think it would be better to just have the 45deg angled arrow.

About lane merging, it doesn't make sense to have an arrow pointing straight (out of the road). I feel like it would be better to have something line this: 

Maybe even include an arrow pointing at 45 degrees to the left or right depending where we want to merge (not the usual 90deg arrow).