Now that I have been able to partake in these projects, I can tell they are wonderful and grand, and they bring the community together in quite a nice way. However, they have two major flaws as it stands.
1. Too many people in one street!
1a. Solution 1 - Instead of having one street for the project manager, have multiple streets. At this point, just 3 streets should be sufficient to hold players for donating to the project. This way, they are spread out, and still have access to the same menu, regardless of location.
1b. Solution 2 - Make a central location (Hint, Bureaucratic Hall) with multiple instances and an NPC that has the same GUI menu for donations to any given street project. This way, the Halls get some use, and all the instances ensure there are never too many players, especially if each instance is labelled with the count of current players.
2. Street donations are too low for requirements!
Solution - Make them 10-100 times as high. Seriously, a whole region should take a month to complete. At this rate of tonight, Rasana will likely be done tomorrow! WTH, Tiny Speck? Add a bit of challenge so a lot of players can experience the fun of this all!