Introduce 15,000 buses along with the Metro and stop renewing petrol/Diesel car permits and sale...

Let the expats switch to Electric cars.... that could be used as an excuse to "green-ify Qatar"... It will also save Qatar tons of Petrol to sell to other countries.

To enable the switch the Govt can easily provide 0% interest loan. Such cars will also not need yearly testing... maybe every 2 or 3 yrs.