diff --git a/DirectrixDerivedReferenceSweptAreaSolid-1/DirectrixDerivedReferenceSweptAreaSolid-1.ifc b/DirectrixDerivedReferenceSweptAreaSolid-1/DirectrixDerivedReferenceSweptAreaSolid-1.ifc
new file mode 100644
index 00000000..c8ce236b
--- /dev/null
+++ b/DirectrixDerivedReferenceSweptAreaSolid-1/DirectrixDerivedReferenceSweptAreaSolid-1.ifc
@@ -0,0 +1,139 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION (('ViewDefinition [Ifc4X3NotAssigned]'), '2;1');
+FILE_NAME ('DirectrixDerivedReferenceSweptAreaSolid-1.ifc', '2021-06-29T15:54:08', (), (), 'ACCA_IFC.dll Version 500', 'ACCA IfcRailGenerator', $);
+FILE_SCHEMA (('IFC4X3_RC4'));
+ENDSEC;
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+ENDSEC;
+END-ISO-10303-21;
diff --git a/DirectrixDerivedReferenceSweptAreaSolid-1/DirectrixDerivedReferenceSweptAreaSolid-1.png b/DirectrixDerivedReferenceSweptAreaSolid-1/DirectrixDerivedReferenceSweptAreaSolid-1.png
new file mode 100644
index 00000000..9ca85446
Binary files /dev/null and b/DirectrixDerivedReferenceSweptAreaSolid-1/DirectrixDerivedReferenceSweptAreaSolid-1.png differ
diff --git a/DirectrixDerivedReferenceSweptAreaSolid-1/README.md b/DirectrixDerivedReferenceSweptAreaSolid-1/README.md
new file mode 100644
index 00000000..ff9500a8
--- /dev/null
+++ b/DirectrixDerivedReferenceSweptAreaSolid-1/README.md
@@ -0,0 +1,37 @@
+### Intent
+
+This scenario allows testing of a fixed reference swept area solid using IfcDirectrixDerivedReferenceSweptAreaSolid. 
+
+### Prerequisites
+
+This scenario builds upon the alignment semantic and geometry definition.
+
+### Content
+
+This scenario covers the following concepts and/or IFC entities:
+
+- IfcAlignment
+- IfcAlignmentSegment
+- IfcAlignmentHorizontal
+- IfcAlignmentHorizontalSegment
+- IfcLine
+- IfcCircle
+- IfcClothoid
+- IfcCompositeCurve
+- IfcAlignmentVertical
+- IfcAlignmentVerticalSegment
+- IfcGradientCurve
+- IfcDirectrixDerivedReferenceSweptAreaSolid
+- IfcDerivedProfileDef
+- IfcArbitraryClosedProfileDef
+- IfcIndexedPolyCurve
+
+
+### Supporting files
+
+Following files correspond to this scenario:
+
+| Filename                          | Description                                 |
+|-----------------------------------|---------------------------------------------|
+| DirectrixDerivedReferenceSweptAreaSolid-1.ifc              | contains the definition of a simple profile and the use of IfcDirectrixDerivedReferenceSweptAreaSolid to sweep along the gradient curve of the defined alignment|
+| DirectrixDerivedReferenceSweptAreaSolid-1.png              | screenshot of the IFC model |