<xs:simpleType name="tTrainProtectionMedium">
<xs:annotation>
<xs:documentation>classification of a train protection system by physical medium</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:string">
<xs:enumeration value="none"/>
<xs:enumeration value="mechanical"/>
<xs:enumeration value="electric"/>
<xs:enumeration value="inductive"/>
<xs:enumeration value="magnetic"/>
<xs:enumeration value="optical"/>
<xs:enumeration value="radio"/>
<xs:enumeration value="rail"/>
<xs:enumeration value="cable"/>
</xs:restriction>
</xs:simpleType> |