Nearly all transportation agencies will tell you that safety is their absolute top priority, but if you look more closely, you’ll discover that—in practice—i...
It doesn’t matter how much sense your ramp makes, it still needs enough height to allow trucks to pass under it. That’s a lot of height to gain. Any sensible ramp would be very long and take up a lot of space, and be very impractical to have to scale at every intersection.
Yes, because no one anywhere has ever built a ramp that made sense.
You’re intentionally being obtuse.
It doesn’t matter how much sense your ramp makes, it still needs enough height to allow trucks to pass under it. That’s a lot of height to gain. Any sensible ramp would be very long and take up a lot of space, and be very impractical to have to scale at every intersection.