A study from TU Dresden revealed the true (external) costs for transportation in the EU. Interesting they have made 2 distinctive cases, one with a high cost for climate costs, and one for low climate costs.
n the case for high climate costs, the total costs for the EU-27 comes at a total external costs of €373 billion. In the case for low climate costs, the total is 'just' €258 billion. A staggering amount, but when looking at the graphs provided in the report, the largest parts of the pie-chart are for accidents and climate change.
Accidents are by far the largest share, so reducing the external costs is benefitted better by reducing accidents than by preventing climate change. Autonomous cars anyone? And yes, electric while we are at it...
For the full report, check out the TU Dresden website.