It's not intended as a solution to traffic congestion. It is intended to give local politicians new talking points to delay any large scale investments in publi

It's not intended as a solution to traffic congestion. It is intended to give local politicians new talking points to delay any large scale investments in public transportation. Who knows how we'll solve transport in the future? Maybe we'll all be in personal cars underground and any massive investments in rail will be for nothing? It's a variant of the general idea of pushing things like elevated monorails that you know are so expensive they won't be built in the near future. Or, indeed, very low pressure tube transportation systems. Car companies have done this type of lobbying work since forever. Just as the oil companies when they push for more production, but since all oil will be biofuel in the future, in the end it will be a net positive for the environment.