On the basis of "operational considerations", the station considered for the feasibility study at the beginning of 1995 provided for eight platforms with four 10-metre-wide and 420-metre-long island platforms. The tracks, which would be dedicated to operations in a particular direction, would have had connecting passages in the tunnels running from the platforms. To the northwest, two twin-track connecting tunnels were to run in parallel and after a sharp curve to the northeast would divide south of Mittnachtstrasse station (in the Wolframstraße area) into a branch towards Feuerbach and a branch towards Bad Cannstatt. To the southeast, four single-track tunnels were to be built directly to the turnout halls (two to Obertürkheim and Untertürkheim and two to the Airport). Under the design presented as an example, the Bonatz Building would have been preserved and an additional entrance would have been created in the side wing on Cannstatter Straße. The railway layout would be built at a gradient of up to 1.1 percent. According to the feasibility study, the costs of the section including the station and the valley crossing, would amount to DM 928 million (DM 807 million plus 15 percent for planning costs, 1993 prices), which on an inflation-adjusted basis would have amounted to € million.
