The controversial Lobau-Tunnel project in Vienna faces potential cancellation following a critical report from Austria's Environment Ministry.

The 500-page "Strategic Traffic Review" concluded that the tunnel would increase traffic, harm the environment, and fail to meet climate goals.

Alternatives, such as expanding public transport and implementing traffic management measures, were deemed more sustainable and cost-effective.

The report recommends removing the project from federal road plans, citing its €2.4 billion cost compared to €400 million for greener alternatives.

Environmental groups and the Green Party welcomed the findings, emphasizing the need for sustainable mobility solutions.

The final decision will depend on political negotiations, with public comments open until March 21.