According to CN Rail, planned expansion projects include:
"-Construction of 12 miles of double track west of Edmonton across Parkland County
-Construction of about seven miles of double track near Wainwright, east of Edmonton
-Construction of about seven miles of double track near Tofield, east of Edmonton
-Construction of about 11 miles of double track near the Alberta-Saskatchewan border
-Installation of a new bypass track at Walker Yard in Edmonton, to increase efficiency of train movements through the yard
-Building new storage and bypass tracks at Scotford Yard northeast of Edmonton for additional car storage and improved operational efficiency
-Building new track capacity at CN’s yard in Swan Landing

Maintenance program highlights include:
-Replacement of approximately 130 miles of rail  
Installation of more than 270,000 new railroad ties
-Rebuilds of approximately 40 road crossing surfaces
-Maintenance work on bridges, culverts, signal systems and other track infrastructure"