I've done some research on this topic in the past, but I just wanted to potentially open up further discussion about the Network Widening Mod/road capacity in NAM versions of SC4. I've been playing the game for about a year with latest NAM revs installed. It took me forever to learn how to sensibly use the RHW, and I still have trouble with it. I'm one of those that try to have a rough plan of what I'm doing in the game, but I usually don't go far beyond using avenues and vanilla roads/OWR in my grids. I still usually end up building everything way too close together
One thing that I'm trying to incorporate are more NWM roads, so I can build denser urban centers that can handle more traffic. It appears that some of the NWM roads can't be played around with much - you can't add FLEXturn setups, or premade intersections that are compatible with RD-6, no? I have one running up the length of a grid that I've built as a main/arterial road. Also, as another example - I've found NRD-4 to be marginally more effective than the RD-2 for traffic flow, with the exact same footprint. However, I've really so far only applied it to roads that need it, and the look is sort of...inconsistent? I dunno. Like I said, I'm still pretty new. Just wanted to get more people's thoughts on this. The NWM tools don't appear to have been brought up as much as the other stuff. Picture is a new tile I'm working on, currently connected to next city solely by the elevated RD-6. Thanks for reading and have a great Monday!