No clue why you got a downvote for these ideas.

Going straight for the sci-fi I see :p

Cities need good infrastructure to expand. I want a city with the infrastructure and amenities to be as successful as the geography permits.

Oh also trains are really cool.

I definitely would have preferred T expansion to Oakland before we spent the money to take it to the North shore.

I just worry that it's another high cost short distance project and suspect a longer distance project would be more helpful to more communities.

Clean reliable convenient public transportation seems to consistently come up in conversations about what makes cities great. It seems like investing in such would be wise for Pittsburgh's long-term future.

I'll admit that as a culture we seem to have adopted attitudes that care more about our current tax burden than the future greatness of our society but that's more of a rant about our school system than our public transit.

It's a matter of timeline and perspective. Even the most efficient electronic buses are not predicted to be able to operate as cheaply as rail is. Over the long haul as long as transportation will be regularly needed along the route rail always comes up cheaper to my understanding.

Just based on what I know of the traffic between Robinson and Greentree Hill if you can service a line going that direction hitting communities like Carnegie in between I could definitely see sufficient density and ridership.

Not necessarily. There is cost but you could build above, below, or beside.

I don't see riding along with the traffic as worthwhile but a tunnel under 65 could be an interesting idea.

Sufficiently worthwhile infrastructure is definitely worth the cost to build it, AKA bridges and tunnels, and unless we are talking about some seriously culturally valuable area eminent domain is reasonable for enhanced infrastructure as well in my opinion.

You mean without the use eminent domain or do you mean without cost prohibitive bridges and tunnels?

I am really not sure for the leg from the city to Pittsburgh International but coming south from the city having stops farther down Carson street and for sandcastle, the Waterfront, and Kennywood on the way to the Allegheny County Airport would be great.

To some people it's Philly, Pittsburgh, or central. The people in Scranton and Erie don't look kindly at that view.