At least 80% of urban car trips could be replaced since the invention of the e-cargo bike. That doesn’t mean it works everywhere, of course, but there are millions and millions of people driving a single digit number of miles, usually at slower than bicycle doors-to-door speeds, and are never carrying 3+ kids and hundreds of pounds of cargo.
Think roads, not cars.
I am. Most of our road costs are for suburban car commuters and for subsidized car storage. If it was business usage and transit we’d need far fewer lanes, especially since businesses would use rail transportation more if the roads weren’t so heavily subsidized.