A (S-train)

A
A
	A train at Nørreport station
Overview
Status	Operational
Owner	Banedanmark
Locale	Metropolitan Copenhagen
Termini	Solrød Strand; Hillerød;
Stations	35
Service
Type	Suburban rail, urban rail
System	S-train
Operator(s)	DSB
Rolling stock	Litra SA and SE
History
Opened	15 May 1934
Technical
Line length	57 km (35 mi)
Number of tracks	2
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	1650 V DC overhead lines
Operating speed	120 km/h (75 mph)

A is a service on the S-train network in Copenhagen. It is one of the base services on the network, running every 20 minutes from about 5:00 to 0:30 every day,[1] and every 10 minutes from about 6:15 to 19:00.[1] It runs between Hundige and Hillerød, serving all stations on the inner part of the Køge radial. During daytime on weekdays, every second train continues from Hundige station to Solrød Strand station.[1] On Friday and Saturday nights there is also a 30 minutes service throughout the night.[2]

History

Since the first part of the Køge radial opened in 1972, letter A has been used for the principal service on its inner part. Before that time the most constant characteristic of service A was that it ran on the Klampenborg radial in the northern end of the system.

Name	Southern end	Years	Northern end
1a	all stops to Valby	1934–1940	Klampenborgbanen: all stops to Klampenborg
1a	terminated at København H	1940–1950
A	Frederikssundbanen: all stops to Vanløse	1950–1952
	as above, extended to Herlev in rush hours	1952–1972
	Køgebugtbanen: all stops to Vallensbæk	1972–1976
	all stops to Hundige	1976–1979
	all stops to Hundige; extended to Solrød Strand evenings and weekends	1979–1983	Nordbanen: all stops to Holte
	all stops to Hundige	1983–1989	Nordbanen: all stops to Holte
		1989–1999	Nordbanen: to Hillerød, non-stop Østerport-Hellerup-Lyngby-Holte
		1999–2007	as above except all stops until Hellerup
		2007–2009	Hareskovbanen: all stops to Farum
	all stops to Hundige; some daytime trains to Solrød Strand	Dec 2009–2014	Hareskovbanen: all stops to Farum
	all stops to Hundige; some daytime trains to Solrød Strand	2014–	Nordbanen: non-stop Hellerup-Jægersborg, all stops to Hillerød

Ax, K, A+

Until 2007, separate service designations were used for trains that reinforced the basic service on the Køge radial in high-traffic periods. This was in part because they had their own stopping patterns, and in part due to the then-current doctrine that a service letter such as A must not be used for more than exactly 3 trains an hour. The first supplementary service was the rush-hour Ax which started running when the first phase of the Køge radial opened in 1972. It was upgraded to the daytime K service in 1992 and quickly renamed to A+ in 1993.

Name	Southern end	Years	Northern end
Ax	Køgebugtbanen: all stops to Vallensbæk	1972–1976	terminated at Hellerup
	all stops to Hundige	1976–1979	terminated at Hellerup
	to Hundige but stopping where?	1979–1983	terminated at Hellerup or Østerport?
	to Hundige, non-stop København H - Friheden	1983–1992	terminated at Østerport
K		1992–1993
A+		1993–1995
	to Køge, non-stop København H - Sjælør - Friheden	1995–1998
	as above, plus stop at Sydhavn	1998–2002
	as above, plus stop at Dybbølsbro	2002–2005
	as above, plus stop at Dybbølsbro	2006–2007	Hareskovbanen: to Buddinge Mon-Fri
Joined into A from September 2007

References

"Hundige / Solrød Strand" (PDF). DSB. Archived from the original (PDF) on 27 October 2011. Retrieved 25 October 2011.
"Night Fri & Sat" (PDF). DSB. Retrieved 25 October 2011.

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[Timetable-1] "Hundige / Solrød Strand" (PDF). DSB. Archived from the original (PDF) on 27 October 2011. Retrieved 25 October 2011.

[2] "Night Fri & Sat" (PDF). DSB. Retrieved 25 October 2011.