This comment brought back to me memories of the 101->110 interchange, in my experience the Marianas Trench in the enormous shit hole that is driving in Los Angeles. For those unfamiliar with this, the important parts are as follows:
- The 101 S ends in central Los Angeles, forcing you to choose between the 5 and the 110.
- Suppose for the moment that you are trying to go south on the 110 (although it may inexplicably be called `west' for some reason). This is well marked, and you think you've safely landed on the 110.
- You now have half a mile to move left four lanes if you want to stay on the 110 and not get dumped unceremoniously into downtown Los Angeles somehow. God help you if there's traffic.
- Some will point out that if you only manage to make it over two lanes in that half a mile, then you end up on a weird section of road that peels off and then rejoins the freeway proper. So you're not completely dead.
To give you some idea of how difficult this feat is, I become a rather aggressive driver in Los Angeles (purely out of self defense, I swear!). It takes me the entire half a mile to get over those four lanes on a road with reasonably light traffic, and that's when I know it's coming.
If memory serves you have to face a related abomination if you're coming north on the 5 and want to get to the 101, as well; my girlfriend at the time missed this turn and decided to take the 10W to the 1N and go home that way (which ended up being a colossal error, but so be it).
The freeway system was not designed in Los Angeles. It was plotted out by a crack team of monkeys addicted to hallucinogens spraying red ink from fountain pens onto a topographical map. Many places can make similar claims, but Los Angeles is special: it has an enormous population, and the sheer physical size of the city and related areas is staggering. On one occasion, unimpeded by traffic, doing 80-85 mph, driving like a madman, it took me half an hour to get from the LAX to Union Station. That's from the periphery of the city to downtown.