Originally Posted by
jib71
If your wife prefers trains for any reason, its worth noting that the fast trains stop at Tokorozawa. So change there for Nishi Tokorozawa.
Tokorozawa to Nishi Tokorozawa is only about a mile as the crow flies. I would take a taxi from Tokorozawa Station especially if her destination is not the actual station in Nishi Tokorozawa.