3 ms·
The design is not supposed to preclude operating at 250 MPH. The minimum curve radius for this speed is enormous. The median in the interstate is not straight
by twobitshifter 5y ago
The design is not supposed to preclude operating at 250 MPH. The minimum curve radius for this speed is enormous. The median in the interstate is not straight enough to support the speeds needed for HSR. You can put light rail in there but not anything much faster than that.