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.
From Grand Theft Wiki. The Farm (back), with its farmhouse featuring blue windows at night. The Farm is a farm located in Flint County, near Easter Bay Airport, Easter Bay Chemicals, and Leafy Hollow. The Farm's farmhouse is notable for having glowing blue windows at night-time, a unique occurrence in all of San Andreas. There is speculation that this is related to the Epsilon Program.