The Boulevard Line (Danish: Boulevardbanen) is a 3.2-kilometer (2.0 mi) long partly underground railway between Copenhagen Central Station and Østerport Station in Copenhagen, Denmark.^[1] The quadruple track railway carries today one dual track for the Copenhagen S-train system and another dual track for the mainline railway and regional trains. The line has two intermediate stations, Vesterport Station and Nørreport Station. It continues above ground to Nordhavn station and at Svanemøllen station the tracks separate towards either Ryparken station or Hellerup station. Dybbølsbro station is also located along this railway, located just a bit south of Copenhagen Central. Out of the four main S-train branches, three follow this path, between Dybbølsbro and Svanemøllen (with at least four tracks). Only at Copenhagen Central, Nørreport and Østerport do all trains stop. While Dybbølsbro, Vesterport, Nordhavn and Svanemøllen all are S-train stations only. (Nørreport also has Metro service, just as both the Central Station, Østerport and Nordhavn have since 2019).

Boulevard Line
The main line platform at Nørreport Station on the Boulevard Line in 2015.
Overview
Other name(s)	'Røret'
Native name	Boulevardbanen
Status	Active
Owner	Banedanmark
Termini	passing through passing through
Stations	7 (S-train), 3 (all trains)
Service
Type	Main line Regional rail IC & IC Express S-train
System	Danish railways
Operator(s)	DSB
History
Opened	1 December 1917 (1917-12-01)
Technical
Line length	3.2 kilometres (2.0 mi)
Number of tracks	Quadruple
Character	Passenger trains
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	Overhead catenary (S-trains use DC power other trains use AC power or diesel)
Operating speed	60 km/h (37 mph) (mainline) 80 km/h (50 mph) (S-train)