How would you explain this sentence?
Those dark men and their wives can’t shop here or ride the trolleys, he said, it’s against the law. Even to get lunch in a restaurant. If one of them needs to make water whilst digging the ditch on Pennsylvania Avenue, or get a drink, he has to walk two miles out Seventh Street to find a restaurant that will let him touch a glass or use the lav.
How would you explain this sentence: he has to walk two miles out Seventh Street?
Does it mean the dark man has to walk from Pennsylvania Avenue to Seventh Street?