even after japan freight railway company started its operation , the volume of rail freight transportation has remained low; however , the business of japan freight railway company is moving back into profit due to the increasing demand for environment protection , as well as to the management efforts including review of advantages of railway transportation , adoption of containers instead of freight cars (car load freight ), and express delivery by introducing new cars . JR貨物発足後も、鉄道貨物輸送量は低水準にとどまっているが、環境保護という観点や、鉄道輸送のメリットの再見直し、貨車(車扱貨物)からコンテナ化、新車導入による速達化などの営業努力により、JR貨物の経営は黒字に転じている。