jon_ma, your solution can address the payment mechanism effectively. Spot Auto debit and debit by ATM can also help.

There shall be no big jams because the toll tax has a self mechanism to counter huge flows on the toll mounted roads. Toll roads generally witness thin traffic.

Two other methods can solve the traffic rush, a>. Reduce the cars, b; increase and widen the roads. Perhaps both are not possible, given the unprecedented population and car growth in the country.

If the problem remains unaddressed proactively, then perhaps all the city roads are bound to clog to the full in the very near future.

This solution on only one road on trial basis can display its effectiveness.