Finnish to English Tech/Engineering Transport / Transportation / Shipping Laying railway tracks

Is this vertical geometrics?

Here is the context:

Pääasiallinen syy on ................ maasto-olosuhteet, jotka joudutaan kiertämään ratalinjauksen pystygeometriavaatimusten vuoksi.

So:

The main reason is the terrain ............... , which would have to be bypassed, owing to the vertical geometric requirements of the rail track route

Does that make any sense?


thanks in advance


Spencer