zakat for human wellbeing

zakat is a system which main aim is to do human wellbeing. we can use zakat fund in some human wellbeing which are given bellow:
     1)We can use zakatfund regularly as a pension system for fulfilling the basic necessity of poor, needy, sick, disable, widow, old orphan etc.
     2) We can use zakat for the poor and needy , so that they become able to reduce their poverty and lead a dignityful life.
     3) Create an environment so that traveller's donot face problems in their travell.