A $28 million project to renovate Tucson International Airport is nearly complete. Much of the funding went to updating infrastructure that dated back to the 1960s, reconfiguring floor plans for new restaurants and retailers, and redesigning security checkpoints. During a tour, Vice President of Planning and Engineering Mike Smejkal said traffic has steadily grown in the last few years and changes are meant to attract more carriers and routes to the airport. About 3.4 million passengers travel through the airport annually on 60 daily flights during peak season in winter and spring. He also spoke about what renovations TIA is considering next.