Complex sentence: Chinatown bus lines are discount intercity bus services that have been established primarily in the Chinatown communities of the East Coast of the United States since 1998, although similar Chinese American-run bus services have cropped up on the West Coast.
Split into simpler sentences: Chinatown bus lines are discount intercity bus services that have been established primarily in the Chinatown communities of the East Coast of the United States since 1998. Similar Chinese American-run bus services are cropping up on the West Coast.