What is your area's "malfunction junction?"

[Roadsguy]

Cleveland's main culprit is "Dead Mans Curve" on I-90 near OH-2



The curve is almost 90 degrees.

It's not so much the angle that matters. There are 90-degree turns in many cities that aren't as problematic. What matters is the radius of the curve, which in this case measures about 350 feet. You can occasionally find loop ramps of that radius.

Yeah, this and this are both 90 degree turns. The difference in radius is what allows one to be taken at 85 mph and the other to require a stop sign like any other intersection.

[jeffandnicole]

Cleveland's main culprit is "Dead Mans Curve" on I-90 near OH-2



The curve is almost 90 degrees.

It's not so much the angle that matters. There are 90-degree turns in many cities that aren't as problematic. What matters is the radius of the curve, which in this case measures about 350 feet. You can occasionally find loop ramps of that radius.

Yeah, this and this are both 90 degree turns. The difference in radius is what allows one to be taken at 85 mph and the other to require a stop sign like any other intersection.

Even then, the second 'this' doesn't require stop signs. Philly has a street grid, and when they modify the grid for something like a runway, they don't remove signage that's unnecessary anymore. Even the crosswalks are left there, even though there's no intersection and no reason to be on the airport side of the street anyway.