The suspension of Metrolink service affects commuters traveling between Laguna Niguel and Oceanside, with ripple effects across the broader transportation network. Coastal erosion and infrastructure damage pose ongoing risks to rail operations in the region, particularly during high tide and strong surf events. Experts warn that Southern California beaches are losing sand rapidly, exacerbating vulnerabilities during El Niño years, which bring intensified swells. Without proactive measures, such as sand replenishment, the coastline and rail infrastructure may face further degradation.