Hildesheim loop

Line 1774: operating points

Route number :

1774

Route length:

3.7 km

Gauge :

1435 mm ( standard gauge )

Top speed:

130 km / h

Legend

		SFS from Würzburg
	29.5 0.0	Branch Sorsum SFS to Hanover
		Bundesstrasse 1
	3.5 45.4	Junction Himmelsthür to Nordstemmen
		to Hildesheim

The Hildesheim loop , also known as the Sorsumer curve or Hildesheim curve , is a 3.7 km long German railway line for long- distance passenger transport . It is single-track and electrified. The route is part of the timetable route 349 Frankfurt am Main - Göttingen - Hildesheim - Berlin .

course

An ICE 1 runs south from the Hildesheim loop (top right) into the high-speed line.

Threading an ICE 1 to the south. The north portal of the Escherberg tunnel and the northern edge of the Hildesheim forest can be seen in the background.

Coming from the south, the loop branches off at the Sorsum junction (district of Hildesheim) at kilometer 29.5 from the high-speed line Hanover – Würzburg . It moves away in a north-easterly direction from the high-speed route running to the north-west. At the Himmelsthür junction , 4.7 kilometers west of Hildesheim, it merges into the double-track Hanover / Nordstemmen – Hildesheim line ( Lehrte – Nordstemmen railroad ) at 45.4 km in a west-east direction. The gradient drops in the direction of Hildesheim.

The line acts as a connecting curve between the high-speed line and Hildesheim Central Station for ICE trains running between Frankfurt am Main and Berlin . The ICE continues from Hildesheim via Braunschweig , the Weddeler Loop and Wolfsburg to Berlin ( high-speed route Hanover – Berlin ). During the day there is an hourly train in each direction across the loop. Only the ICE Sprinter , which runs between the two cities, only branches off from the high-speed route towards Wolfsburg / Berlin in Hanover, at km 7.0.

Of the 3.5 km long new line, 2.2 km run on dams, 1.3 km in cuts and 0.04 km on bridges. The permanent space requirement is given as 6 hectares.

business

Trains running in the direction of Frankfurt am Main change from the regular to the opposite track before the Himmelsthür junction . In the Escherberg tunnel , immediately south of the Sorsum junction, there is a change of track from the opposite track that was used for a short time to the regular track. Due to these single-track and level threadings, the capacity of the loop is limited and susceptible to delays. Together with the single-track section Weddel – Fallersleben (“ Weddeler Loop ”) it is considered a bottleneck in the northern German rail network.

The route and the points of the junctions and track changes can be driven continuously at 130 km / h, the subsequent high-speed route towards Göttingen is planned at 250 km / h. In addition, a protective switch is installed at the Sorsum branch .

history

planning

A connection to Hildesheim was not planned in the early planning of the new line and was included in the regional planning procedure in the mid-1970s as part of the so-called variant III . After coordination discussions with the administrations and municipalities involved, 4 alternatives and 15 different variants were examined.

Initially, at least until 1986, a branch speed of 100 km / h was planned. This was increased in the course of route optimization initiated in 1984.

According to the planning status of 1982, a total of 29 pairs of passenger and freight trains should use the loop every day .

In the planning phase, the northern part of the loop belonged to plan approval section 1.6, the southern part (from km 1.235; with merging into the high-speed line) to plan approval section 1.3 of the new line.

construction

The cost of the project was given in 1986, at the price level of 1986, at 42 million Deutschmarks.

The Hildesheim Loop was opened in 1991.

Web links

Commons : Hildesheim Loop - collection of images, videos and audio files

Course of the route on the OpenRailwayMap

Individual evidence

↑ ^a ^b ^c DB project group Hanover-Würzburg [North] (ed.): New line Hanover-Würzburg: Sorsum, Klein Escherde, Groß Escherde. Leporello (14 pages) as of December 1, 1982.
↑ according to the route pricing software (TPIS) 3,700 meters from Sorsum to the Himmelsthür junction
↑ ^a ^b ^c ^d DB, project group Hanover – Würzburg [North] (ed.): Giesen, Nordstemmen, Hildesheim . Hanover October 1st 1986.
↑ Helmut Weber, Walter Engels, Helmut Maak : The new Hanover – Würzburg line . In: Railway technical review . 28, No. 10, 1979, pp. 725-734.
↑ Peter Münchschwander (Ed.): The high-speed system of the German Federal Railroad. R. v. Decker's Verlag G. Schenk, Heidelberg 1990, ISBN 3-7685-3089-2 , p. 86.

52.156294444444 9.8679555555556Coordinates: 52 ° 9 '22.7 " N , 9 ° 52' 4.6" E

[nbs-1982-13-1] DB project group Hanover-Würzburg [North] (ed.): New line Hanover-Würzburg: Sorsum, Klein Escherde, Groß Escherde. Leporello (14 pages) as of December 1, 1982.

[2] rding to the route pricing software (TPIS) 3,700 meters from Sorsum to the Himmelsthür junction

[db-1986-10-01-3] DB, project group Hanover – Würzburg [North] (ed.): Giesen, Nordstemmen, Hildesheim . Hanover October 1st 1986.

[etr-10-725-4] Helmut Weber, Walter Engels, Helmut Maak : The new Hanover – Würzburg line . In: Railway technical review . 28, No. 10, 1979, pp. 725-734.

[hgv-db-1990-86-5] Peter Münchschwander (Ed.): The high-speed system of the German Federal Railroad. R. v. Decker's Verlag G. Schenk, Heidelberg 1990, ISBN 3-7685-3089-2 , p. 86.