The four-car units have a top speed of 100mph and quick acceleration, making them ideal for long commuter lines with frequent station stops.
The line also carries frequent freight operations working from Felixstowe and Ipswich to Stratford, where connections are made with the North London Line and main lines radiating from London to other parts of the UK. Train Simulator: Great Eastern Main Line London-Ipswich Route Add-On Notable landmarks along the route include London Liverpool Street, Stratford, the Olympic Park, Ilford Carriage Sidings, Chelmsford, Colchester, Manningtree, Stoke Tunnel (the only railway tunnel on the Great Eastern Main Line) and Felixstowe Container Terminal and Docks, as well as the Braintree branch from Witham and the short branch line to Colchester Town. It is electrified at 25 kV AC using overhead wires and has a line speed of up to 100mph (161km/h). A year later, the London terminus was moved to Bishopsgate and over subsequent years the line was extended further into Essex, reaching Ipswich in 1846.