1-CongestionTaxService (Service to receive tax rules).
2-CongestionTaxCalculator (Tax calculation based on car and city).
3-CongestionTaxCity (The list of cities).
I used https://calendarific.com/api/v2/holidays to receive public holidays.
Run "CongestionTaxService.Web" first.
Then run "CongestionTaxCalculator.Web".