What is not included in SIPOC process inputs solutions customer How many freight railroads operate in the US less than 550 350 more than 550 100 342.5 points A contract carrier offers a specialized service to customers on a full time basis offers all services to all customers offers a general service to customers on a contractual basis offers a specialized service to customers on a contractual basis ESR is managerial decision making that considers environmental, societal, and financial impacts managerial decision making that considers environmental , societal, and sales impacts managerial decision making that considers environmental, energy, and financial impacts managerial decision making that considers waste reduction, societal, and financial impacts SRM activities are planning and control activities that link a firm with its upstream customers planning and control activities that link a firm with its upstream suppliers planning and control activities that link a firm with its downstream suppliers planning and control activities that link a firm with its downstream customers