I'm trying to think if in my 14 years of driving in the UK, I ever saw anything the same as a 4-way stop sign I don't think I did. It would either be a roundabout, have traffic lights, or one road would have the right of way.
ANYhooo - if you're doing Vegas to LA... this is the way to do it ( I did this backwards, literally, 5 weeks ago )
Head west to Red Rock Canyon - it's right outside Vegas and there's a road that loops through it. From there - hit the 160 and head west toward Pahrump
When you get there - there's a big shopping centre for drinks and snacks and lunch etc etc. (And without being rude to the fine people of Pahrump - that's ALL there is - it's really not a very nice place)
Turn west out of Pahrump onto the road that becomes the 190 and takes you to Death Valley.
Before you get to Death Valley - there are two stops to make. Dantes Peak ( a viewing point across the valley ) and Zabriskie Point ( just a few miles before Furnace Creek ) Both have views you would not believe.
Hopefully - by about this time it's early evening. Set up camp just north of Furnace Creek at the camp site near Furnace Creek Ranch ( the ranch has a restaurent, but it's DAMN expensive ) if you've the time. Then you want to head south a few miles from Furnace Creek toward Artists Drive. This is the place from which to watch the sun go down- it lights up the valley sides like you would not believe. Then - back to the camp sight and enjoy the night sky that will literally make you swear out loud. It's that good.
Following morning - head south from the campsite - enjoy Badwater Basin (lowest point in North America) - then head back north - get gas at Furnace Creek... it's expensive, but it's the only gas for about 80 miles in any direction and you do NOT want to run out. Carry on PAST the camp site and up toward Stovepipe Wells - stoping off at the little pull-off near Stovepipe Wells to take in the Sand Dunes - utterly spectacular.
Leaving Death Valley from this road is awesome - you climb up from -200 ft, to over 4000 ft... it's a lot cooler up there and you get awesome views back into Death Valley - PLUS - you then end up driving through Panamint Valley - the views driving into it are utterly breathtaking. There are plenty of places you can pull over and stop to get out and take it all in - the road is fairly quiet as well - if you're stopped for 10 minutes and see more than one car, consider it the rush hour.
That road then takes you back up to 4000ft to come out of Panamint valley - and you end up at Owens Dry Lake - where you can head west, still technically on the 190 ( but you will feel like you're turning off it ) to Olancha.
Head south from there on the 395 - towards Mojave. If you're running ahead of time - stop for lunch - behind schedule - an early dinner

at Mojave Airport's cafe. You can't miss it - it's basically at the foot of the air-traffic control tower. You never know what you might see there, and there's a full sized model of Space Ship One. It's where Scaled Composites, XCor and others are all based.
http://www.mojaveairport.com/voyager.htm - Take a tour if you can (just ask at the cafe ) - the Airplane graveyard is the weirdest place you'll ever see.
From Mojave airport - you're about 90 minutes from the LA basin - maybe 2 hrs from downtown LA itself.
These photos document the trip from Vegas, through Red Rock Canyon, Death Valley - Zabriskie Point - Badwater Basin - Artists Drive - Mequite Dunes - Panamint Valley and as far as about Olancha - but in reverse -
http://gallery.me.com/djellison#100108 - I started at home in Pasadena, and finished in Vegas - with a night in Furnace Creek Ranch.
Or - you know - just do your own thing
