Watford DC line

The Watford DC line is a suburban line from London Euston to Watford Junction in Watford, Hertfordshire. Its services are operated by London Overground, on which is it known as the Lioness line.

Watford DC line
London Overground Class 710 Aventra at Harrow and Wealdstone in 2022
Overview
StatusOperational
OwnerNetwork Rail
Locale
Termini
Stations19
Service
Type
System
Services2
Operator(s)
Depot(s)
Rolling stock
Technical
Number of tracks2
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification750 V DC third and fourth rail (fourth rail only on sections used by the Bakerloo line)
Route map

The line runs beside the West Coast Main Line (WCML) for most of its length. The London Underground Bakerloo line shares the section of the line from Queen's Park to Harrow & Wealdstone. The rolling stock used on the line are Class 710 "Aventras" made by Bombardier.

The "DC" in the title refers to line being electrified using direct current. This was done in the early twentieth century with conductor rails to be compatible with the four-rail system used by the Underground and, at the time, the North London Line; currently, the line uses a third rail system, with a fourth rail available on the section shared with the Bakerloo line. By contrast, the WCML uses overhead alternating current.

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