Current princes highway alignment started around 1940
Geelong Road Level crossing was removed in 1927
Corrected grammar as crossing actually refers to a name
Added Geelong Road as main name
Added Hoppers Crossing and Geelong Road - Newport - Sunshine Line level crossing
Added Geelong Road - Ballarat/Bendigo Line level crossing
Added Main Outfall Sewer Alignment
Added Calder Highway alignment to Mildura
Added older way so there isn't a gap before 1966
Updated alignment that is only after 1955 to trunk road
Original Calder Highway Alignment
Add end dates to roads under Hume Highway
Extrapolated National Route 1 Alignment through Melbourne CBD before King's Bridge Opened in 1961
Extended National Route 1 Through Sydney
Original Hume Highway Alignment from "Five Miles from Gundagai" to Sydney