I think that when the more "imitative" segment of our society sees that converting away from fossil fuel and embracing a green lifestyle does not have to mean less "prosperity", they will probably stop complaining about us trying to save their hides.
The under-passes that Tand spoke of could be shady rest stops, with benches and possibly a water source. Even landscapers could be employed to construct flowing fountains, running down the diagonal bridge supports. Shade-loving ornamental and edible plants could be grown in such a scenario; ferns, ivies, even fungi.
With projected ambient temperatures expected to rise, world-wide, how important would these under-pass oases prove? What I propose is elementary: There are much more creative thinkers than I, who could help turn our thoroughfares, both large and small, into areas that are healthful, aesthetic and welcoming.
The enhancement to the local, potential tourist markets would be immeasureable. Cycling is big business, now, and is increasing, especially in regards to "normal" cyclists, who are not interested in riding 50-60M. "Sunday riders" everywhere would love to see their towns' and cities' roads made more life-enhancing.
Perhaps another idea is to offer Free Ride stations, where drivers who have never been on a bicycle, or simply would like to see if they "still have it in them", could, perhaps on Sunday, pull in to the station (maybe a park) and are issued a loaner bike to ride alongside a trained cyclist for perhaps 15-30 minutes, to see just how different and wondrous the world can become when one is not encased in steel and glass.