I don't know that to be true if a full accounting of the entire technology's system is made. When I was in logistics my rule of thumb was, if possible get it on the water. Maybe. But I'd put my bet on walking.
Nah, walking is fairly inefficient, you're better off biking. You got very little friction on steel to steel (rail) I'd be surprised if ships are all that efficient given the inefficiency of propellers and all that hydro you gotta push out of the way
Depends on what road the potholes are on. Federal road then you can hold this legislation accountable but county or local potholes then this legislation isn’t the right focus of your ire.
I don't think so. Biking requires mining, manufacturing, road building and maintenance, at least. I've heard the human animal is the most efficient walker of all animals.
If you're doing a well to wheels calculation (and not just getting a bicycle off Craigslist), you may as well account for the miles you'll travel either way, calories burnt, and food intake to make up the difference of walking vs biking. Then you can compare if that offsets the few lbs of steel and rubber production. When talking transportation efficiency, it's generally assumed point A to B, or else electric cars would be losers with their higher production impact. And yeah, bipeds are more efficient than quadrupeds, it's why we can outrun prey