in christchurch, the city loop is currently operating on a limited circuit after being reopened 27 november 2013 following the christchurch earthquake of 2011 which halted services while the cbd was closed off. the tramway was being extended in several small stages starting late 2000s and was nearly complete when the 2011 earthquake struck. while these proposals are all officially heritage / tourist lines, there is some investigation into later extension or conversion for normal transport use. this line was extended in 2014 with the reopening of the full pre-earthquake circuit and the opening of the nearly complete extension through the mall and high street.