What are the names of roads with more traffic?

[Railroy19]

I'm trying my hand at loading some roads on the route I'm building. Trying to figure out how to install Crossings, and I will get them working sooner or later:) The roads I'm installing are called Ltraffic does this mean only a few cars will ride down the road? I would like more vehicles driving along the roads.
Could someone suggest a good road with good traffic for me to try?
Or what are your favorites?
This Sim is addicting, and fun.

Thanks,
Bob