The document discusses Beijing's efforts to address traffic problems in preparation for the 2008 Olympics through various static and dynamic measures. Static measures included expanding subway lines and bus routes. Dynamic measures included an odd-even license plate restriction system during which vehicles with odd/even plates could only be driven on odd/even dates, reducing daily emissions by 40%. Over 60% of travelers switched to public transit as a result. The goal was to promote green transportation and make the 2008 Beijing Olympics both green and high-tech.