In 2016, the Dialogue joined Western Sydney councils and major landowners to establish the Western Sydney Rail Alliance to lobby for a north–south rail connection in Western Sydney. The proposed rail connection would connect to the new Badgerys Creek Airport. According to the report A network of opportunity–Western Sydney Rail by Deloitte and Arup, a north–south rail connection would boost employment hubs in Western Sydney and promote economic growth. In 2018, government approved $7bn in funding for a new rail connection from St Marys to Badgerys Creek Airport.
