I’ve driven that chunk of Western and I don’t recall any bends near I10. When I get home I will look again.
If you visit Griffith Observatory one of the most fascinating views from there is Western Ave, straight as an arrow, disappearing into infinity (or what the locals call Whittier.) Andromeda’s not too bad either…
Baseline Road in Phoenix goes east through Tempe, Mesa and Apache Junction- over 40 miles in a straight line.
Actually, I think it’s Imperial Hwy, not Western, that I’m thinking about.
You can’t fool me you were just thinking about that big nasty red head at your side.
Lombard street is actually straight. They just put planters to force drivers to slow down and go in a S curve.
Vermont street is the actual winner but the neighborhood there has a very strong lobby, they dont want tourists driving down their street.
Isn’t this a deliberate feature of highway design? A distraction every once in a while, to keep drivers from zoning out completely?
But what they do have is the annual BYOBW race that combines the best of Grand Prix open wheel racing with the worst of NASCAR crashes. Put competing in this on your bucket list.
I know this wasn’t a serious suggestion, but the Channel Tunnel is a rail tunnel, not a road tunnel. (But you can take your car on the train.)
Lombard Street IS very straight, for about 17/18ths of it’s length.
By “some accounts,” US-93 is VERY straight, for 360 miles. But cars on that road seem to experience some spontaneous alignment problems.
It’s not really significant, and I’m sure for the OP’s purposes, it wouldn’t count. See here. The one in Chicago is a bit more significant.
I’d guess one of these. Oh, wait, you said on Earth. nm.
Interstate 30 going between Texarkana and Dallas, about 170 miles. Very, very mind numbing straight. I’ve driven it too many times. It’s easy to daydream driving I-30.
I’d say those both count as straight, in my mind. The latter is a bit iffy, but I’m feeling generous. 
Seriously, it looks like in both cases the right of way is straight, and the engineers just got a bit fancy weaving things around a bit at the road intersections.
Waaaaaay too much wobble to be a contender.
It is not. Most of the time, if you see a noticeable deviation in the road for no apparent reason, it probably has to do with property lines. Adding a little jog can increase the cost of the road by hundreds of dollars, not to mention the maintenance inconveniences it would present. Engineers are paid to draw up and implement the most efficient solution to a problem, which means they will draw the shortest (straightest) road the conditions allow.
This thread is more fascinating for me to see the wide range of interpretations of the word “straight.”
Oh shit, now ya done it. Somebody will be starting a thread soon about what is the gayest road :eek:
The longest road in the US is the Highway To Hell. Once you arrive, I’m told it never ends!
Yonge St., once the longest street in the world, but certainly not the straightest, and once home of the St. Charles Tavern.