text: In Source 2 Duffer, speaks about how in Paris bans are being placed against the usage against cars, due to the fact Paris has a high level of smog. Paris had motorists with even-numbered license plates on Mondays leave there cars home or suffer a fine. On Tuesday motorists with odd-numbered license plates were to leave cars home or suffer a fine. The advantage of this ban is that having so many people leave there cars home on Monday allowed the smog to clear enough that the ban for Tuesday was rescind. If Paris were to do this ban for a couple of years there smog issue would be completely gone. This would be a major advantage for them, it would give them less pollution, not as many people getting sick due to the smog, and a less car dependent city.