At this point, as well as at the Heerstrasse and Deutschlandhalle Stations, automatic "track free" signals were constructed in order to permit the accommodation of the greatest number of trains. At first, only an increase in the number of ticket offices and ticket lanes was planned for Pichelsberg Station, located in the immediate vicinity of the Dietrich Eckart Open-Air Theatre, the polo field and the riding ground. However, since the changes in the programme made shortly before the opening of the Games would involve the handling of a larger amount of traffic, a new entrance and a foot bridge leading to it were built at the west end of this station. With the construction of the Deutschland Hall and the re-naming of the station (Eichkamp) to "Deutschlandhalle," lanes of entrance and ticket offices similar to those later used for the Reichssportfeld Station were also constructed here. In accordance with the expectation of increased traffic to be handled at the station in Grьnau, extensions were made to the ticket examination boxes, and at the station in Staaken a special platform was built to accommodate visitors to the gliding contests. The first part of the enormous reconstruction project of the Zoological Garden Station was completed before the beginning of the Olympic Games with the opening of the new Municipal Railway platform. The reconstruction work of Tiergarten Station and the reconstruction of the overhead railway bridge across Charlottenburger Chaussee were so planned and executed as to insure completion before the opening of the Olympic Games. Finally, the construction of the North-South Municipal Railway was so accelerated that the section between Stettiner Station and Unter den Linden was completed before the opening of the Games. The facilities at the Friedrichstrasse Station were placed entirely at the disposal of the long distance railway and Municipal Railway traffic. The need for a special line of trains between the Reich Sport Field and Charlottenburg was met by the construction of a new track at the Charlottenburg Station. In order to avoid an excessive voltage drop in the power and track lines due to the quick succession of trains at the Reich Sport Field Station, a mobile transformer with two rectifiers of 1,200 kw each was employed at the Reich Sport Field Station. Consequently, an average of 780-800 volts tension was maintained even during the times of the most rapid sequence of trains. No definite information concerning the expected long distance traffic was available until shortly before the opening of the Olympic Games. In spite of this, the ramps and the safety devices of Grunewald Station were extended to accommodate special trains. This was done principally to relieve the congestion at the Anhalter Station.
The construction of the "Strength through Joy" Station at Heer Strasse Station, which was also meant to relieve the long distance stations, was furthered by the German Railway. The handling of local traffic, however, and the arrival of trains over the Municipal Railway freight tracks by way of the steep single-track connecting stretch involved great difficulties. Cost of construction was covered