The traffic jam occurs near the Beijing end on the Beijing-Tibet highway. I'm sure the Tibet end is fairly clear since they are couple thousands of miles apart

The traffic jam occurs near the Beijing end on the Beijing-Tibet highway. I'm sure the Tibet end is fairly clear since they are couple thousands of miles apart (http://en.wikipedia.org/wiki/China_National_Highway_109 http://en.wikipedia.org/wiki/China_National_Highway_109). It's like the traffic jam near NYC on the SF-NYC highway (if there's one) having no impact on SF.