2013 Düsseldorf, Tram Medienhafen
Up to six-fold increases in traffic volumes are predicted for the area in and around the Düsseldorf Media Harbour as a result of extensive new building developments. The developments are being built in the Düsseldorf Harbour about 100 – 200 m south of the media harbour itself and harbour basins A and B.
Access to the new area will be by a tram service linking the harbour to city centre of Düsseldorf. From the existing line carrying service 708, which turns into Plockstrasse after the Franziusstrasse stop, a new branch for service 704 is planned from where the line leaves Franziusstrasse.
After crossing the Hammer Strasse / Plockstrasse junction, the line runs in a grassed track between the carriageways of the redesigned Franziusstrasse before it reaches the Speditionsstrasse stop.
The alignment then curves to the left into the western side of Speditionsstrasse, which the line follows in the direction of Holzstrasse. After this, on a right-hand curve, the line follows Holzstrasse as far as the new Kesselstrasse stop, beyond which it ends in a turning loop.
The loop is enclosed by Holzstrasse and Kesselstrasse and the new Stichstrasse, which is part of the adjoining development area. The entry into the turning loop and the area around the stop is designed as twin track.
The minimum radius within the loop is 25 m. According to a vibration report produced in 2006, measures to reduce vibration and structure-born noise were required in the area of the new turnout (branch off to Gladbacher Strasse / Hammer Strasse).
As a result, an extensive mass-spring system (MSS) was installed to isolate the vibrations in the superstructure. The cross section of the MSS and the specification of the elastic bearings in the report were derived from dynamic and kinematic track calculations.
The client and the engineer providing the independent check decided to install Calenberg USM 2020 track mat below the track slab, which was completed in August 2013. The USM 2020 already had a proven record of success in similar projects. The cone-shaped stud mats are made of solid rubber with additional reinforcing fabric interlayers in the chlorinated rubber (CR) top layer.
The studs responsible for the vibration-dampening effect on the underside of the mats are made of a special natural rubber mixture. This rubber is particularly suitable for reducing vibrations caused by trams passing over it to a level that people living in the immediate neighbourhood are not disturbed by the trams.
Calenberg Ingenieure GmbHAm Knübel 2-4
+49 5153 9400-0
+49 5153 9400-49