 Soon after, the Council purchased those shares in private hands Ports of Auckland to fund the improvements with the dividends.In the final period before its subsumation into Auckland Council, the ARC was concentrating on the electrification of the Auckland railway network, building the case for a CBD rail tunnel, and an extension of rail to Auckland Airport.In its final years, the ARC had been getting more involved in land use regulation, a move which was met with criticism from some politicians of the concerned Councils who normally regulate such matters.