In recent years Chicago police and the CTA have sent more officers, unarmed security guards and K-9 teams to the train system in an attempt to bring the crime rate down, causing the CTA to project it would pay more than double the cost this year that it paid in 2022 for security services. But the perception of safety on the CTA is a key issue for the agency, and whether the crime rate and concerns about crime continue to fall could play a role in ongoing discussions about what the pandemic-era future of Chicago’s public transit should look like.