Caltrans rhymes with:
intertrans, intertrans, rosecrans, rosenkrans, afghanistan's, afghanistans, afghans, alcan's, bedpans, businessman's, c-span's, caftans, callahan's, caravans, goodman's, greenspan's, intertrans, lifespans, lumberman's, meehans, pakistan's, rosecrans, rosenkrans, stockman's, tajikistan's, taliban's, talibans, tarzan's
Caltrans sounds like:
children's, childrens, childrens', clattering, cluttering, coltrane's, culturing