Hi,
I struggle with sight visibility checks. By default we can use several methods to calculate sight distance (Italian, AASHTO, Australian and French). These methods are great because ORD can read the grade and speed from the alignment and we can do one visibility check for the entire corridor, unlike the table method, where we have to manually change required distance every time the grade changes.
Is there a way to add more methods or modify equations which program use to calculate sight distance?