I am not sure this is the right strategy. There is a real difference between Private and Public goods and confusing them leads to poor results. See Jane Jacobs classic book Dark Ages Ahead. On the other hand, there are certain cases where this makes sense. Partnering with developers to improve investments in transit makes sense and has worked in other countries. Charging users of large bridges can also make sense, and I suppose certain toll roads and even airports. But we have to be very careful that we continue to make real commitments to public investments and not delude ourselves that this can be covered by PPPs.