Vast differences between most industrialized countries that provide viable mass transit options, including 200 mph electric trains, and the USA where many highways are only legal for people driving a motor vehicle. That did not happen by accident as a company was formed after World War II to buy up and dismantle all the nation's electric street car companies, burning the street cars and ripping up the tracks.

Even in cities there is the problem of having half the land being dedicated to motor vehicles and allowing on street parking which makes it much more dangerous for cyclists. Cargo trailers do not make the situation any better as they are going to tie up an entire lane in cities although this has long been a problem with the full size trucks used by UPS, FedEx, and now Amazon, to deliver packages.