California is looking into high-speed coaches that could someday travel at up to 140 mph (225 km/h) and connect Los Angeles with San Francisco in just over three hours.
The express service could connect major metro areas in the US state such as Sacramento, the San Francisco Bay Area, Los Angeles and San Diego. The buses would travel much faster than car or coaches on normal roads where speed limits are much lower.
The California Department of Transportation, also known as Caltrans, said it had been researching the concept for at least a year…