Complex sentence: At this intersection, SR 118 turns left onto US 278 west, and US 43 and SR 171 turn right onto US 278 east; the three highways travel to the north-northwest.
Split into simpler sentences: At this intersection, SR 118 turns left onto US 278 west. Also, US 43 and SR 171 turn right onto US 278 east, and the three highways travel to the north-northwest.