This article of Planetizen well explains why we need KSB stance to understand TOD as a mean to mitigate urban sprawl. Most of COP TOD KSB members, at least I, consider the population increase, economic growth (rise of land price in city center and people's wish to own house for larger space) and motorization as prime driver for urban sprawls (see the table below which I use to teach the urban sprawl in my class in Tokyo).
Source: Hiroaki Suzuki, World Bank Urban Development Consultant
We discuss the need for transit and plans and regulations such as FAR, promoting transit-land use integration and creating articulated densities in the station areas or along transit corridor. We might need to go farther.
The author of this article explains diversified laws (regulations) on education and housing also induce people to live suburbs. The author also considers transit as a mean to mitigate negative aspects of sprawl on poor and disabled, too.
The Author says "Because Jacksonville had been growing rather than shrinking, I focusedprimarily on policies that made Sun Belt cities automobile-oriented, such as minimum lot size requirements and wide streets. ". This reminds me of the regulations in China (wide street) and Ethiopia (minimum lot size).
The Bank's client countries have their own restrictions (of which we never thought) causing urban sprawls. To prevent sprawls and to promote TOD, we need to think out of the box. We also need to work closely with COPs on other thematic issues such as land development, spatial development. education and social inclusiveness.