The underground metro network consists of a set of pauses and movements spaces. . Stations are paused spaces and tunnels are subway networks. At present, in some metropolitan areas, it seems that citizens are more familiar with the metro network map in order to reach their destination, and the zero-city level map of the city is not very tangible for them. It is possible to strengthen the perceptual power of subway users by indexing subway stations. Indexing of some stations can create a good cognitive-perceptual map in the mind of the citizen so that they can use the underground transportation network frequently and have a correct understanding of the zero space network of the city. Cognitive-perceptual map is a tool that shows the degree of ease of understanding of the city for each citizen. The historical landscape of each city, due to its identity, can create significant points in the mind of the citizen. This makes it possible to understand the spatial coordinates of the city despite the shift in the underground network. So far, only the cognitive-perceptual map of the city has been proposed in the literature of urban design.
In this research, identity-cognitive map is mentioned as a new keyword in urban design vocabulary. In this way, the problem of lost sense of belonging and identity of the underground urban spaces can be solved to some extent.
In this research, by comparative analyses method of "case-based", in two metropolises of Tehran and Berlin, the level of attention to the historical urban landscape in understanding the city map in designing metro networks and stations (through analysis of existing maps and field surveys) is determined.
In this study, the relationship between the historical urban landscape and the network of underground metro stations of the two cities has been determined. The results show that although in terms of network status and spatial quality, Berlin stations are superior to Tehran But in terms of urban graphics, Tehran is superior to Berlin. In both cases the identification of identity cognitive maps, both in terms of network design and station design, lack of compliance with the historical perspective and the vacuum of comprehensive basics of the subject is noticeable.
Keywords: Underground Urban Spaces Network, Historical Urban Landscape, Identity cognitive maps, Tehran, Berlin.