What is the work of Engineers as Advisers?

Engineers  act  as  Advisers  in  Planning  and  Policy-Making  like  Economists,  sociologists, urban planners, etc.

In  Policy-Making  they  advise  about  the  Cost  benefit  analysis  of  alternate  solutions  for transport, housing, energy, defense, etc.

In Planning they check the feasibility, risks and benefits of the specific technological projects which affect public in local communities