At the crash site , the improved signaling system installed Creating after the crash now protects Preventing_or_letting the passing trains and motor vehicle traffic .

Use Using of the umbrella – an everyday item that protects Preventing_or_letting users against the rain and the sun – by the protesters to deflect Defending pepper spray and tear Destroying gas of the police , has given Giving the object iconic status at a political level , symbolising resistance Defending and the underlying social grievances .