Could you perhaps flesh that out? What exactly does that mean?

Our cities are going through a paradigm shift because they need to make mobility more sustainable.

They need to address negative externalities, which unfortunately come with transport, such as air and noise pollution, congestion, unsafe streets and climate change.

And that's why a couple of years ago we launched the Just Transition Agenda.

And we have to make sure that within that transition, we don't leave anyone behind.

And the challenge is really multifaceted because we need to look at affordability of transport, the overall cost of mobility that is.

We need to look at the physical accessibility of streets, interchanges, vehicles, buildings.

Karen, what strikes you about Barcelona's approach? And importantly, how might aspects of it be replicated in other European cities?