The lowest travel time to work by mode of transportation was still walking or bicycling. I think the discrepancy between this and what I said is that I was men

The lowest travel time to work by mode of transportation was still walking or bicycling. I think the discrepancy between this and what I said is that I was mentioning extremely dense areas and this probably has a much broader criteria for what constitutes as urban. For example the city of Houston may be urban but there is nothing walkable about it. There are markedly few areas in the US that are mega-dense. Check out the individual places I mentioned