Due to its enclosed sub-surface platforms, New Street was designated as an underground station by the fire service. In the 1990s, a number of changes had to be made to the station in order to comply with stricter fire regulations, introduced for underground stations as a result of the 1987 King's Cross fire. In 1993, a new enclosed footbridge was opened at the Wolverhampton end of the station, with access to the platforms separate from the main building: this was built primarily as a fire exit, but the new exit from the station into Navigation Street was opened to the public. All wooden fittings were removed from the platforms, and new fire doors were also installed at the foot of the stairs and elevators on the platforms.