To quantitatively analyze and present operation result data on a vehicle such as a railroad vehicle in a short time.

A control part reads out the operation result data from an information storage part based on a calculation condition, and calculates operation state information indicating an operation state of a train in a predetermined travel section based on its read-out operation result data, and displays its evaluation result on a display part together with the operation state information by evaluating whether or not the operation state of the vehicle is proper in the predetermined travel section by referring to an evaluation reference stored in the information storage part. Thus, the operation result data on the vehicle such as the railroad vehicle can be quantitatively analyzed and presented in the short time. Objective evaluation can also be performed differently from subjective evaluation of a manager.