I'm not exactly positive how this published map by the Hillsborough MPO fits into the scheme of things given that rail is not currently a part of our 2020 or 2025 long-range transportation plans (current efforts to change that notwithstanding). However, I think it noteworthy, if only to show newbies to this cause, how the plan for light rail was expected to "fit".
The map can be found on an MPO page that happens to present many other maps, each reflecting different plans and different stages of plans (adopted or not -- and I rather suspect not is the category our map of interest actually falls into).
The map opens as a PDF document. You need the free Adobe Acrobat Reader to load it up and view.
The red line equals a "Fixed Guideway" route. In more certain times it probably read "light rail" or "commuter rail" lines, but now it stays generically safe of these provocative concepts.
The route depicted on the map is identical to the full-scale rail network planned for, had we unlimited funds to work with. In actuality, the eventual system adopted by Hartrail was much more conservative. If you look at the map and compare it with the one exhibited in the light rail section of Tampa Rail, you see that it was the USF/Westshore line that was ultimately proposed. Nonetheless, the full depiction is completely valid, even today (I believe). The studies supporting the full scale depiction still have a shelf life, even if it can't be funded from a federal perspective. Granted it's quickly running out, but it is still a worthy point of note.
Open the PDF using the link below.