The new railway line in northern Croatian has not been built since 30's of the last
century and none of existing networks has been significantly modernized (except of modernization of the direction from Hungary via Koprivnica to Zagreb). Railway lines Čakovec - Zaprešid and Zabok - Krapina have been only slightly modernized by installing modern signalling and safety devices in some stations around 1980, but  there has not been provided a significant investment in infrastructure, but also the organization of quality passenger and freight services on these lines are largely absent.