Stairfree Access as Limitation to be more compatible with OJP (#362)

* Stairfree Access as Limitation to be more compatible with OJP and for EP

Author: ue71603

xsd/netex_framework/netex_genericFramework/netex_accessibility/netex_acsb_limitations.xsd

@@ -65,6 +65,7 @@ Rail transport, Roads and Road transport
 		<xsd:sequence>
 			<xsd:element ref="WheelchairAccess"/>
 			<xsd:element ref="StepFreeAccess" minOccurs="0"/>
+			<xsd:element ref="StairFreeAccess" minOccurs="0"/>			
 			<xsd:element ref="EscalatorFreeAccess" minOccurs="0"/>
 			<xsd:element ref="LiftFreeAccess" minOccurs="0"/>
 			<xsd:element ref="RampFreeAccess" minOccurs="0"/>
@@ -136,6 +137,11 @@ Rail transport, Roads and Road transport
 			<xsd:documentation>Whether a PLACE has step free access.</xsd:documentation>
 		</xsd:annotation>
 	</xsd:element>
+	<xsd:element name="StairFreeAccess" type="LimitationStatusEnumeration" default="unknown">
+		<xsd:annotation>
+			<xsd:documentation>Whether a PLACE has stair free access, in comparison with step free access one single step in the route is allowed.</xsd:documentation>
+		</xsd:annotation>
+	</xsd:element>	
 	<xsd:element name="EscalatorFreeAccess" type="LimitationStatusEnumeration" default="unknown">
 		<xsd:annotation>
 			<xsd:documentation>Whether a PLACE has escalator free access.</xsd:documentation>