Although vacuum brake boosters are almost ubiquitous, some vehicles use hydraulic brake boosters, which are powered by hydraulic pressure instead of vacuum. This pressure is provided by a drive belt-driven pump and may be tied into a hydraulic power steering system.
Unity Station. The exterior of Unity Station in Los Santos, San Andreas. Unity Station is a railway station in Grand Theft Auto: San Andreas located along the Brown Streak Railroad line in San Andreas.
Here is a simulation of ground motion after a magnitude 8 earthquake on the San Andreas fault, showing ground shaking throughout southern California for more than 75 seconds after the rupture begins near Parkfield. San Diego Supercomputer Center researchers led the development of the simulation.