This papaer may be of interest to some.
A new study from the University of Colorado Denver shows public health
issues are often ignored in many transportation projects, especially when
major roads are built through lower-income neighborhoods. Air pollution,
crime and numerous traffic hazards, the study said, point to a serious and
persistent gap between public health and planning.
Here is s link to the study but you need access to the Journal of Planning
Education and Research to read it