But so too would it be a good idea to discourage driving through higher tolls, pricier gas, and better public transportation.
Another viable option is to discourage driving when there are other extenuating financial circumstances. 
mnli hypothesis: Another viable option is to discourage driving when there are other extenuating financial circumstances.  premise: But so too would it be a good idea to discourage driving through higher tolls, pricier gas, and better public transportation.