I have, but it's my opinion that Cincinnati has a unique set of circumstances that make light rail unfeasible in the immediate future. I should have elaborated a bit more. While a park and ride system would work on one end (the suburban) it would be difficult to find destinations that wouldn't require a car to move around. for instance, if light rail is built up the I-71 corridor, points of interest in Hyde Park, uptown/Clifton area, downtown and the Banks would require a localized transit system, meaning much improved bus routes. This is in addition, of course, to the difficulty of acquiring right-of-ways, and the funding for construction as well as operation. Heck, even the MTA in NYC is running in the red even after hiking their rates recently, and they fill the trains there like sardine cans.