Raised Road not building

My first game, and sorry if this is covered elsewhere.

I am trying to build a raised road down from raised area, and it shows fine on the preview but when I hit build it goes wrong and creates roads that run along the hill and are to steep. See the two attached photos

Any ideas why this is happening? What am I doing wrong? How do I get the resources down this path?

This is the before post - I’m new so I can’t post two pictures.

This is the after picture.

Build with shorter road segments so it doesn’t split into separate pieces all at the same elevation above the ground. With those shorter segments you can use the r/f (and R/F) keys to construct an elevated roadway like your before post suggest is possible. In some places you can run the road at an oblique angle to the line of descent so you do not exceed the steepness limit.