Previously, Cathedral Square was used as the central city terminus for buses, and all trams passed through it until the 1950s.
Christchurch City Council (CCC) was looking for an alternative central city location when approached by the Carter Group in relation to a substantial development of a good portion of the block surrounded by Lichfield,
Colombo and
Cashel streets. Within weeks, CCC committed itself to the project. The public consultation process had an emphasis on informing, rather than seeking feedback, as the public transport part of the Carter Group's redevelopment was carried out during a late stage of the overall development. Retail spaces in the development were already being fitted out when agreement was reached to build the Bus Exchange. The Bus Exchange opened on 20 November 2000.
Bus network changes As the Bus Exchange would not have the capacity of a terminus, where vehicles
lay over for a length of time until their next run starts, an extensive restructuring of bus routes was required. Two techniques were used that allowed the Bus Exchange to be used as a normal bus stop: • The terminus for a route ending in the central city was relocated to the edge of the central city, opposite to where the route came from. That greatly increased coverage of the central city, but also significantly increased bus volumes on central city streets. It also required the establishment of new termini, some of which near residential land use proved to be quite controversial. • Where routes came from opposite ends of the city, they were combined to form through routes. The former technique was the main one to be employed initially. Over time, routes have increasingly been through-routed as bus contracts came up for renewal. ==Layout==