well i noe this city really welland i did base my SCR on it. well wut u should do is wait for rush hour to come out. thats when i am going to create my sc4 sfo there are a lot of 1 way streets here and there are also many ports and avenues that will be included in rush hour
in the presidio area the park is a lot smaller it should be wider. as for the highways in the presidio they are flat (R H feature) and they end with avenue/freeway connectors (R H feature)
but u are very talented in making this region. would love to noe ure secret so i can make a region look like this too.