North County Transit District, which runs the BREEZE bus service, is in charge of managing Del Mar's transportation. The modern Solana Beach station, which presently serves Coaster commuter rail and Amtrak's Pacific Surfliner, opened in 1995, replacing the historic Del Mar station, which served intercity and railroad travel. It is now the second-busiest passenger rail line in the United States because to these services. Due to coastal erosion, the railway tracks on coastal bluffs are being assessed for relocation; a $3 billion+ tunnel through Del Mar is one option.