Complex sentence: The New Orleans Regional Transit Authority (RTA or NORTA as it is called by some residents) is a body established by the Louisiana State Legislature in 1979; since 1983 it has controlled bus and streetcar service in the City of New Orleans.
Split into simpler sentences: The New Orleans Regional Transit Authority (RTA or NORTA) is a body established by the Louisiana State Legislature in 1979. Since 1983 it has controlled bus and streetcar service in the City of New Orleans.