It means exactly what it says... Some Sprint managers have access to a reporting site that shows Network Vision and 4G progress in various markets. The Milwaukee Market (essentially southern Wisconsin) is divided up into smaller areas. Overall though, the Milwaukee market is forecast to have 91 towers live for LTE in 90 days. Again, I stress "forecast", and one of those towers is on or at Oklahoma Ave and Beloit Rd. Its the plan. And as with all plans, that can and could change.
Its the info I have.