> It should be a piece of cake.
Eh, you can't compare a local area GDP to a national GDP like this. Yes, tons of software licensing and ad revenue are funneled to the SF region giving us a local area GDP of 591 Billion dollars[1] which is comparable to Switzerland's $750 Billion, but if you try to convert that regional income into infrastructure spending, you'll find that
1) the ability of the bay area to tax that 591 Billion is much less than the ability of Switzerland to tax it's economic activity, as Switzerland captures ~32% of it's national income, while the bay area captures something like 10% of its regional income, so a ballpark 1/3 deflator.
2) once revenue is obtained from taxing, the efficiency with which the distributed bay area governments can make use of the tax revenue is much, much lower than the efficiency with which the Swiss government can spend the money. I'd estimate a 1/10 deflator. This is because we will waste tons of money doing various studies, funnelling side payments to local machine politics, battling environment impact reports in courts, funding various diversity and equity initiatives, and set up a dozen committees to oversee the spending plans.
3) once a dollar is actually spent on the production of infrastructure in the bay area, you'll find that the we will get much, much less for that dollar in infrastructure spending then the same dollar spent in Switzerland on infrastructure. I'd say another factor of 1/3 as per https://www.vox.com/22534714/rail-roads-infrastructure-costs...
So when you multiply all those deflators, you'll find that our 591 Billion can be usefully channelled to 1/90 * 591/750 ~= 1% of the useful infrastructure that Switzerland has.
Which seems about right.
Remember it cost San Francisco $3 Billion for the DTX[2] which is 2 kilometers of transit. We are not Switzerland, we are a dysfunctional, corrupt, patchwork of local governments that doesn't really understand much of anything when it comes to infrastructure or efficient government.
[1] https://apps.bea.gov/iTable/iTable.cfm?reqid=70&step=1&acrdn...
[2] https://sf.curbed.com/2018/6/18/17464616/bay-area-subway-tra...