A whistleblower has alleged that safety upgrades to Sydney's light rail network — sensors designed to detect people entering the dangerous coupling area between joined trams — were abandoned over cost disputes, despite a total price tag of only around $2.2 million. The former employee of Transdev, the private company that operates the network, claims the technology was successfully trialled after a fatal incident in 2023 but shelved before a second death in 2025 after Transport for NSW (the state government's transport authority) declined to share installation costs. The New South Wales government faces growing pressure to investigate, with opposition and union figures calling the decision extraordinary given the relatively modest expense compared to the $3.1 billion cost of building the 12-kilometre network.