private bool similarPassiveTransportAlreadyExists(IPassiveTransportBuildingBlock passiveTransportBuildingBlock, ITransportBuilder passiveTransport, string passiveTransportName) { var existingPassiveTransport = passiveTransportBuildingBlock.FindByName(passiveTransportName); if (existingPassiveTransport == null) { return(false); } return(_formulaTask.FormulasAreTheSame(existingPassiveTransport.Formula, passiveTransport.Formula)); }