  By employing the external Kasparov product, Hawkins, Skalski, White and
Zacharias constructed spectral triples on crossed product C$^\ast$-algebras by
equicontinuous actions of discrete groups. They further raised the question for
whether their construction turns the respective crossed product into a compact
quantum metric space in the sense of Rieffel. By introducing the concept of
groups separated with respect to a given length function, we give an
affirmative answer in the case of virtually Abelian groups equipped with
certain orbit metric length functions. We further complement our results with a
discussion of natural examples such as generalized Bunce-Deddens algebras and
higher-dimensional non-commutative tori.
