The Transport Agency plans to spend more than $50 million tackling risks to its outdated technology that have been rated "critical" for years.
Internal reports show it has so far managed to overhaul its advanced traffic management system that helps keep roads safe.
However, it has had to go looking for other projects to pause or defer and one result is a national ticketing system for public transport that has been in the works for six years has been delayed yet again.
RNZ reporter Phil Pennington spoke to Susie Ferguson.
