The article claims that there are now 1.5 million registered vehicles in Shenzhen--this figure doesn't include the electric bikes, small motorized carts, and cars with fake license plates. The one problem I have with the article is that unlike past articles it doesn't mention anything about the Special Economic Zone and the rest of Shenzhen--usually such articles only focus on the Special Economic Zone (Does anyone know the area of the entire city? Is it more than 2000sq. km.?) Also, the last time I read an article like this it separated the numbers between private vehicles and taxis and buses. From what I remember about a previous article a couple years ago, 1.5 million sounds like the number for private vehicles.
Although the roads will supposedly reach maximum capacity with 2 million cars in 2012, the city is still working to extend the subway system. Unfortunately, as I found out from my students, drivers in Shenzhen are unlikely to forgo driving for the convenience of mass transit (it's all about face).
The other article was about a family suing the city police for negligence that caused the death of two people who were hit by a bus that drove through the highway median to avoid debris on the road. The problem with this accusation is that there are very few traffic cops on highways in China--they mostly stay at check-points along the roads (no speed traps like we have around here). I'm not sure what a reasonable amount of time is to remove a 22-ton piece of steel from the roadway, or if the police are responsible for its removal.