The Sky bus metro project, indigenously developed by the Konkan Railway Corporation Ltd (KRCL), can meet the urben transportation demands for at least a century as there is no other existing solution to the ever-growing needs of burgeoning cities, according to the Corporation's Managing Director, Mr B Rajaram. Besides being eco-friendly as well as technically and financially viable, the project is also safe and the most economic option for solving the most economic option for solving the transportation blues of big cities, Mr Rajaram told.