Elevator group management device and elevator system

An elevator system comprising:

• an elevator group management device;
• and
• an information display device configured to display information from the elevator group management device,
• the elevator group management device including processing circuitry configured to:
• estimate a traffic flow based on boarding and alighting floors of users and a number of boarding and alighting people of the elevator,
• determine a policy of running of a car based on the traffic flow estimated,
• evaluate operational efficiency at a time when the car is virtually run based on the policy determined, and
• cause the information display device to display information indicating a status of learning,
• the processing circuitry calculating, as an improvement state of the operational efficiency, a ratio of a difference between a pre-improvement average waiting time and a post-improvement average waiting time to the pre-improvement average waiting time.