you can understand this only if you leave in israel. In west negev, along the roads, in the junctions, near bus stations. A colorfull painted concrete buildings. they are used as shelters when terorists of HAMAS fire rockets on people leave in this area. if they happaned to be on the roads when the firing goes on, they have to run in a few seconds to hide. on 7q10q23, people were hidind in this shelters. But, HAMAS terorist who invad the area, murdered a lot of them, on the roads, in the shelters.