Do you have any good suggestions for upgrading characteristic towns into world-class cultural tourism projects?

Some characteristic towns are developed by relying on national scenic spots, and such characteristic towns enjoy natural tourism purposes. The construction of calculation/prediction model must be objective and true, and it cannot be distorted in order to pass the "two arguments" or the data looks good; It is more important to set up the risk/benefit distribution and adjustment mechanism of government/social capital, so that even if the project forecast is inaccurate, it will not cause serious interest imbalance among project participants, thus hindering the project from continuing.