
As far as I understood by the PDF file the only means to raise the city rating, when this is really bad, is to build trees? I was thinking that perhaps some kind of lobbying could be implemented just like the bribe and the advertising options. The effect should not be instantaneous but rather improve the city rating over a period of time, say e.g. 5 years. Also, this method of improving the rating should perhaps be limited to increasing the rating from "very bad" to "ok" (sorry, can't remember the names of the ratings) but not beyond.
On a side note; When the new maintenance and reliability system is introduced, it is crucial that these informations are readily available to the player in order to optimise his/her routes.
Since this concept needs a lot of play testing, perhaps the subversion branch should be added to the compile farm, like the new houses branch, in order to make play testing easier for no-compiling-yet-ottd-playing-players
