There definitely seems to be a couple of functionally optimal road sizes, where extra pavement dramatically improves flow and by doing so at least appears to gr

There definitely seems to be a couple of functionally optimal road sizes, where extra pavement dramatically improves flow and by doing so at least appears to greatly improve throughput. In our town, the city has been switching from tight two lanes each way to one lane each way, plus turning lanes and bike lanes, and these new layouts are significantly more pleasant to drive with none of the old left-turn snarls of the past.