Eighteen S70s are already in use on Houston's first light rail line,
the Red Line, which opened in 2004 and carried its 75 millionth
passenger last December, four years earlier than expected. The 12km
line is currently being extended 8.5km north to Moody Park and
Northline Transit Center. Utilities diversion has also begun in
preparation for the start of civil works on the 9.7km Purple Line from
Smith to Palm Center.