Here's a little of what he has to say in a podcast interview with Reconnecting America:
It’s interesting to me that in the age of the streetcar, you had low-density streetcar suburbs that worked just fine. I think that that kind of lifestyle can work, where you can get even moderate densities to be very effective in supporting transit systems. I don’t think we have to correlate high density apartment living with TODs, I think there can be townhouse neighborhoods and even small lot, single-family neighborhoods with transit systems. Once again, it’s the mix.I think that's a really important point. TOD doesn't need to be super dense everywhere to be effective. There is a general fear out there that planners are trying to change neighborhoods into 100 unit per acre condo towers. But that is simply not bearable in the Market.
Anyways, check out the interview.