<enumeration value="Unknown" />
<enumeration value="Suburban" />
<enumeration value="Intermediate" />
<enumeration value="Urban" />
<enumeration value="HighSpeed" />
<enumeration value="unknown" />
<enumeration value="suburban" />
<enumeration value="intermediate" />
<enumeration value="urban" />
<enumeration value="highspeed" />
</restriction>