That is the least concrete way of drawing what I know. But it sometimes ends up to slow traffic especially if there is a lot of traffic and feels like decreasing the capacity of the road. But as long you can lose some capacity from road, it does not slow the flow much.

Ok, now I got it. Thank you.

So you connect neighboring ins and outs, then link those connections, saving concrete.

I reproduced this layout and was surprised how fast the northern road is despite being so wiggly.