I received my USA Roads (CD) a few days ago and have been playing around with the settings of the add-on and my own in the Sim.
I have settled on major roads only.
You can have major roads, all roads or just go back to default. You can set the night lights brightness, traffic (street) density and pavement reflection.
I have gone full out with the settings in their configuration and have maxed out my scenery, autogen, terrain sliders, yes I'm taking a major hit from my Sim settings, nothing of any consequence from USA Roads but the scenery, buildings, trees, detail is amazing and to follow the roads that I'm familiar with is a kick.
If I had to buy it again I would, it adds a new perspective to the Sim but isn't as "spectacular" as I had hoped it would be.
I imagined that the major roads (freeways) would be thick and solid looking like the runways are, no they are easy to pick out and follow bur aren't sharply clear. Maybe my expectations were set to high. I dreamt of a freeway with 5 distinct lanes in each direction, a side shoulder with guard railing and a center divider, too much to expect. Next time?
Link to USA Roads,
http://www.flight1.com/products.asp?product=roads001
A few screenshots:
Los Angeles Coliseum is on the right.
It looks to me that it's the junction of the Santa Monica Freeway and the San Diego (405) Freeway.
On the bottom at about 8:00 o'clock is KSMO Santa Monica Airport.
Two shots of Las Vegas at night, you can see the heavy traffic on the major road called "The Strip".
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