The primary concern for visitors and residents during the World Cup is the extreme heat, which could pose health risks such as heat exhaustion or heat stroke for those spending extended periods outdoors. The city's traffic congestion may also be exacerbated by the large crowds attending the matches. However, the climate-controlled stadium and accessible public transit options, including MARTA, aim to mitigate some of these challenges. Visitors are encouraged to stay hydrated and take breaks in shaded or air-conditioned areas to avoid heat-related illnesses.