[Test Case]: Alignment Linear Positioning & Stationing

E1-ALRF/ALLP/README.md

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+## Summary
+
+*Include a short description of the test case.*
+
+*Optional: if your data comes from a specific Storyline or unit test of the IFC Infrastructure Deployment Project or IFC Rail Project, please include a link to the originating documentation here. so additional background information can be created.*
+
+With these instructions the baseline stationing and linear positioning exchange will be established between various domains. This includes basic alignment featuring the common layout described in TC1.1:
+- horizontal
+- vertical
+
+and the stationing and relative positioning concepts where physical elements can be placed relative to positioning elements. In order to accomplish a semantic description of a station, property sets will be used on referents.
+
+A typical alignment also features reference markers as embedded elements for relative positioning along known locations along the alignment.
+
+## Itemised Roots
+The Test instruction addresses the import and export of the following IFC Entities & Concept Templates:
+
+- IFC Entities
+    - *IfcAlignment*
+    - *IfcAlignmnetHorizontal*
+    - *IfcAlignmentVertical*
+    - *IfcAlignmentSegment*
+    - *IfcAlignmentHorizontalSegment*
+    - *IfcAlignmentVerticalSegment*
+    - *IfcAxis2PlacementLinear*
+    - *IfcAxis2Placement2D*
+    - *IfcAxis2Placement3D*
+    - *IfcCircle*
+    - *IfcClothoid*
+    - *IfcCompositeCurve*
+    - *IfcCurveSegment*
+    - *IfcLine*
+    - *IfcLinearPlacement*
+    - *IfcLocalPlacement*
+    - *IfcGeometricRepresentationContext*
+    - *IfcGeometricRepresentationSubContext*
+    - *IfcGradientCurve*
+    - *IfcMapConversion*
+    - *IfcPolyline*
+    - *IfcProject*
+    - *IfcProjectedCRS*
+    - *IfcProductDefinitionShape*
+    - *IfcReferent*
+    - *IfcRelPositions*
+    - *IfcSite*
+    - *IfcShapeRepresentation*
+- Concept Templates
+    - *Alignment Layout*
+    - *Alignmnent Geomtry*
+    - *Alignmnet Geometry Gradient*
+    - *Project Global Positioning*
+    - *Spatial Containment*
+
+## Variations
+The Following occurence variations need to be checked and certified in relation to the targetted entities and concept templates:
+
+- Entity_01 - *decription of variation*
+- Entity_02 - *decription of variation*
+
+
+## Usages
+The following itemised restrictions and constraints shall be placed on IFC Entities & Concept Templates:
+
+- IfcSomething
+    - *Constraint*
+
+
+The Test case requires the following additional checks related to Model Geometry:
+
+- *Constraint*
+
+
+## Model Dataset
+This test case utilises the attached dataset documented by the following drawings and data schedule. 
+
+*This is a later step tha involved the detailed documentation of the certification dataset (model)*
+
+
+## Drawings (Visualisations)
+The following Drawings and visualisations describe the test case dataset to be modelled and certified.
+
+
+## Supporting files
+
+| Filename                          | Description                               |
+|-----------------------------------|-------------------------------------------|
+| *filename*                        | *short description*                       |