I've put together my list of priorities for transit projects that could be developed incrementally over the next 10 to 25 years to make up a comprehensive transit system in the Austin MSA.
Projects sponsored by different lead agencies and using different funding sources should be able to be developed concurrently even though some cost sharing among agencies is likely for many projects.
The regional projects will likely take longer to implement due to scope, complexity, and uncertain funding for some projects, but I have listed them by priority within that category.
Most projects have already been proposed, but I added a couple of my own ideas as well. Most costs are from published reports. I had to guesstimate a few based on published costs.