This Master Plan map from 1951 is focused on land use. The 1950 Census puts Detroit population at its peak of 1,849,568 people.

The most significant element that can be seen is this map is the extent of “industrial” land use. Much of the 1951 industrial areas in Southwest and along the I-75 corridor are no longer. Similarly, the “commercial” areas have shrunk considerably, especially Downtown and many of the neighborhood commercial areas.