ATLANTA — New numbers show security and first responder incidents have declined in recent months at Hartsfield-Jackson Atlanta International Airport, even as the airport saw an influx of travelers for the World Cup.

The decline comes as Hartsfield-Jackson remains the world’s busiest airport and became the first airport in the country to reach 100 million passengers in a year.

Augustus Hudson, deputy general manager for airport operations, says officials had expected security incidents to increase with the rise in travelers, but that increase did not happen.

“We’ve been on the decline in security-related incidents and in emergency response incidents that relate to safety around the airport,” Hudson said.

Hudson says safety and security measures are also being incorporated into construction projects around the airport, including the new south parking deck.

“We have safety precautions in the deck that enhance their security,” Hudson said.

The new numbers come as Hartsfield-Jackson hosts its annual Safety, Security and Risk Expo Tuesday. The event will recognize employees, contractors and federal partners who have helped keep travelers and their co-workers safe.

“These individuals embraced the safety culture that we expect to have throughout the airport and creating the safest environment for our passengers and employees,” Hudson said.

The expo will also feature discussions, demonstrations and technology aimed at improving airport safety and security.

“We have different individuals that come to talk about different aspects of safety, it could be critical incident response, it could be safety kept systems, those are just a number of the topics that we have and we also have construction demos,” Hudson said.

The airport has experienced several high-profile security incidents over the past year.

Last October, a Cartersville man allegedly went to the airport with an assault rifle after making threats to carry out a mass shooting. He was arrested by an Atlanta police officer.

In May, a man was able to rush past an airport security checkpoint.

Despite those incidents, officials say overall security and first responder incidents have been declining in recent months.

WSB Radio’s Michelle Wright contributed to this story.