This repository is to submit, review & store Test Cases & Instructions defined for IFC4.3 Alignment Based Reference View Certification, and is developed as part of the IFC Infrastructure MVD Project.
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Mandatory entities for certification - discussion on example of road alignment #33
As you say, there's a lot still to be defined. My main issues are:
I have assumed straight line, circular arc, clothoid for horizontal and straight line, parabolic or circular arc for vertical. Is that all for a road alignment or are there other more obscure cases?
Is it enough to test straight, left turn, right turn in horizontal and straight up/down (connected with arcs) for vertical?
How to produce the actual test case? I looked at e.g. the alignment from MCON-2 but that does not contain clothoids. It would be nice to have a set case that uses all necessary segment types in all typical ways (left/right, up/down, transitions, ...).
pjanck
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2 years ago 
As you say, there's a lot still to be defined. My main issues are:
_Originally posted by @larswik in https://github.com/bSI-InfraRoom/MVD-Infra-Test-Instructions/pull/26#discussion_r781164296_