Are there any examples of a city that used a canal/river right of way to build rapid transit other than Wuppertal? And I mean like literally over or straddling the waterway

I ask that because my city has a few drainage canals (not very wide) and they're all flanked with 2 or 3 lanes of car traffic on both sides, and often congested during rush hour.

any examples?

So I’m graduating college soon with a business degree… I don’t want to enter the corporate world. I have recently discovered the power of good and efficient public transit and I’ve decided I want to make a career of it. I’m making this post because I’m in need of some guidance. My dream would be to work with the implementation and/or advocacy of more bus, subway, high-speed rail routes in the U.S. especially in lower income communities. The past year has been eye opening to me in the world of public transit. I really do want to, at the very least, try make a difference in this country. I’m just asking for guidance on what I should do. I have no experience in urban planning or engineering (as I said, business major…) and I’m graduating college soon. Are there any ways to get my foot in the door? Any help would be greatly appreciated.

https://northerntracks.blog/2024/12/08/will-transportation-woes-ever-be-fixed-in-canada-and-ontario/

Including wait & transfers!

In your opinion, in additional minutes, where is the cutoff if we are talking about a high-quality mode (ex: frequent, uncrowded, etc subway)?