There is some serious concerns here. I know too many seem to have excessively high hopes for the game at this stage, but some of these problems are such that they could easily be fixed if there was only a desire to do so.
What is completely absurd is that there, judging by that latest video from the day past, there are only three types of motorway; and there is only a single-lane slip/ramp. This is a serious step back from what we had at our disposal in CIM2, and all the more frustrating because CIM2's system was very functional and something that ought to have been retain insofar as this area is concerned (road flexibility). The lack of tunnels is also inexcusable.
We can see that there are only three lane motorway main-lanes, and only single-lane slip ramps. There appears to be no way of having a two-lane slip road, nor does there appear to be any way of having a two-laned motorway. We are stuck with these american monstrosities instead (they have hard shoulder on the interior as well as the exterior...). Now, I do understand that implementing an effective deceleration and acceleration field system for a functional dynamic traffic system is difficult, but this isn't, infact, this was done very well in CIM2, and the fact that so much of this has been entirely removed is disheartening to say the least. (There is in CIM2 a way to make, although not entirely pretty, a deceleration field by widening the road just prior to the slip road, this would not be possible to make here.)
Having a flexible (adjustable by a slider as in the CIM2 map editor) lane-count would also avoid the needless cluttered menus.