Map of the RSR and RK systems showing opening dates  
 

Legend:
1854K = opened by RK in 1854
1855S = opened by RSR in 1855
1843K (1848S) = opened by RK in 1843, RSR granted running powers in 1848
1848S (1854K) = opened by RSR in 1848, RK granted running powers in 1854
1851S/K = opened by RSR in 1851, RK granted running powers immediately