You Never Know About Traffic...

As we're traveling around Guangzhou, we're constantly hitting little mini traffic jams.  These aren't like in NJ where they can last for miles and 20 to 30 minutes, they tend to be brief jams at points where traffic is crossing... lots of cars shifting at high speeds, from left to right to exit, while another stream is shifting from right to left to enter.  Things like that.  Frequently we'll sit in traffic for 2 to 5 minutes and then the whole mess suddenly all seems to accelerate at once without any apparent "reason" for the jam up.

The other day we got to see what caused the traffic jam...