While many of the most compelling maps of the rail system in Russia in the late 19th century are aspirational and show many planned routes that would not ultimately be built (and if built would be built differently), this provides a simple view of what actually was in place at the time of the epidemic and would have been available to a traveller wishing to flee the dangers of big cities.
It is largely a political map, with provinces differentiated by color and cities and larger towns are notated. Although largely in English, the scale is given in versts as well as miles.