Polmadie Traction and Rolling Stock Maintenance Depot (T&RSMD), also known as Polmadie Depot, Polmadie Traction Depot and Polmadie Carriage Maintenance Depot (Glasgow) is a railway maintenance depot on the West Coast Main Line in the Polmadie district of Glasgow, Scotland. The depot is run by Alstom, who maintain Avanti West Coast's fleet of Class 390 Pendolinos.