with customers through continuously improving their internal process and this is a precondition to supply trustworthy transportation services for customers. Therefore, they secure trust by supplying a high quality of transportation services for customers if they pursue simultaneously both commitment with customers and improvement of their service processes. Third, work standardization is ascertained to enhance the relationship between commitment and flexibility (supported H. 1-8). The forwarders provide customers with flexible transportation service to correspond with customers needs through enhancing commitment and, in addition, they provide the service for customers through their standard work processes. Therefore, they enhance flexibility in their service higher than before, through stressing commitment with customers and work standardization together. Fourth, intelligence generation is ascertained as enhancing the relationship between commitment and trust (supported H. 2-1). The forwarders increase commitment if they understand customer needs and ascertain changes in the market and, as a result, they increase trust of transportation services. Therefore, they get trust in the service when they increase commitment with customers and activities concerned with intelligence generation in the market. Fifth, intelligence generation is verified as enhancing the relationship between commitment and flexibility (supported H. 2-7). The forwarders increase commitment through an effort for the acquirement of market information and it provides customers with better transportation service which reflect customer needs. Hence, the efforts which acquire market information are possible for the forwarders to provide customers with flexible transportation services through increasing commitment in relation to customers.