traffic light

Observe traffic rules

Observe traffic rules (1975, November)

Pay attention to the signals ahead, absolutely guarantee the safety of moving trains

Pay attention to the signals ahead, absolutely guarantee the safety of moving trains (early 1980s)

Everybody observes order, everybody pays attention to social morality

Everybody observes order, everybody pays attention to social morality (1983, January)

Let our lives have more order

Let our lives have more order (1983, February)

Observe traffic regulations, safeguard public order

Observe traffic regulations, safeguard public order (1987, June)

Maintain a clean environment, safeguard good order

Maintain a clean environment, safeguard good order (1997, September)

Subscribe to traffic light