Well, there many things that can be done. We, the common people cannot have access to all the fuels but most of us have vehicles running on petrol or diesel.
So we need to keep in mind that we turn off our engines when there's a red signal, we can also turn off the engine during traffic jams. Moreover what we can do is switch to CNG, which is a man-made fuel and can regenerated with time, but
petrol or diesel cannot do so.
So basically, being precautive would be better when conserving fuels.