Transport planning in Auckland provides limited opportunities for genuine public involvement in defining transport problems and their solutions. In recent years, this scenario has changed due to the emergence of proactive community groups in transport planning debate in Auckland. The purpose of this paper is to explore proactive community groups, their roles and impact on the public transport planning debate in Auckland. The research identifies three proactive community groups – Generation Zero, the Campaign for Better Transport and TransportBlog - and explores different dimensions of their pro-public transport perspectives in Auckland. The data analysis includes a detailed content analysis of the TransportBlog website to explore the contents of the debate related to the City Rail Link (CRL). The research identifies a role held by the proactive community groups in providing civic leadership and facilitating a debate regarding future public transport systems. The research concludes that intelligent and proactive community groups can play a role in facilitating institutional change in favour of public transport.