Average daily auto traffic on Interstate 15 at the Nevada-California border surged by nearly 200 percent in spring 2021 as Las Vegas roared back from COVID-19 pandemic lows, then slipped into a pattern of modest declines and slow recoveries through 2024-2026. As the data captures visitors, local and commercial traffic moving between Southern California and Southern Nevada, it can be a proxy for regional economic activity tied to cross-border travel.
