Complex sentence: Tolls along the South Bay Expressway are collected at all northbound onramps and southbound offramps, as well as the mainline Otay Mesa Toll Plaza, located at the southern end of the facility just north of Otay Mesa Road/SR 905.
Split into simpler sentences: Tolls along the South Bay Expressway are collected at all northbound onramps and southbound offramps. This basically includes the mainline Otay Mesa Toll Plaza, located at the southern end of the facility just north of Otay Mesa Road/SR 905.