By Paris Ibell of RNZ Morale at NZ Transport Agency Waka Kotahi (NZTA) is "at rock bottom" after a fresh wave of proposed job cuts, the Public Service Association (PSA) says. The restructure would lead a further 140 roles to be disestablished, with a net loss of 30 positions. Proposed changes would impact three groups: transport services, commercial and corporate and system leadership, the PSA said. PSA national secretary Duane Leo told RNZ workers were in a state of confusion and shock after the proposed cuts were put to them. "Morale is zero, it's rock bottom at the moment, and there's real insecurity out there." The restructure was especially disruptive, because it came just three weeks after another restructure that affected more than 250 roles in NZTA's regulatory group. He pointed out the latest round of changes marked the second major restructure at NZTA since the beginning of the coalition government's term.…