Avhandlingen beskriver och analyserar hur frågor kring tillgänglighet/handikapp för första gången aktualiserades och implementerades i planeringen och utformningen av den byggda miljön i Aten, nämligen processen i samband med beslut, planering och implementering av jätteprojektet Atens Metro. Studien tecknar framväxten av olika handikapporganisationer, som från att ha varit svaga aktörer successivt lyckades få gehör för sina krav inom stadens förvaltning, politiska organ, den grekiska riksdagen och inte minst inom de företag som byggde metrosystemet. Avhandlingen diskuterar hur handikapporganisationer och metrosystemet växte fram och påverkade varandra, hur viktiga forum för att diskutera/problematisera olika perspektiv på handikapp skapades där aktörsgrupper med delvis olika intressen förde fram sina ståndpunkter och förhandlade samt vilka konkreta avtryck som dessa processer ledde till i form av en - slutligen - handikappvänlig teknisk konfiguration av metrosystemet. Studien knyter också an till den europeiska diskussionen, bl.a. inom EU, kring handikapp och vilken betydelse som denna diskussion hade för det framväxande metroprojektet, inte minst inför Atens OS-värdskap 2004. Avhandlingen tar sin teoretiska utgångspunkt i dels samhällsvetenskapliga teknik- och vetenskapsstudier, dels "disability studies". / The idea of building a metro network in Athens dates back to the 1950s. It took almost fifty years for the Greek government to develop plans, secure funds and to carry out an effective procurement process for the construction of the Athens metro. In February 1987 the government announced an invitation to tender for the design and construction of the metro. Thirteen years later, in January 2000 the first two lines began operation. The construction of the metro consisted of numerous preliminary studies, different public organizations which dealt with its development and several controversies concerning its design. One of these controversies referred to the issue whether the metro would be accessible to disabled people or not. Integrating accessibility provisions in the metro design constituted a controversial issue where different actors argued and acted for and against its implementation. This study describes and analyses the process of making the metro accessible. The analysis focuses on how questions regarding accessibility/disability were actualized for the first time in the planning and design of the Greek built environment and in particular on the process of building the biggest and most complicated infrastructure project in Greece, the Athens metro. At the same time, the study describes the evolution of disability organizations in Greece: they changed from being weak actors who were unable to influence socio-political configurations to actors that successively gained attention within the public administration, political organs, the Greek Parliament and the company that constructed the metro. The study discusses how disability organizations and the metro were developed and influenced each other and how important forums, where several actors with diverse interests problematized and produced different perspectives on disability, were initiated. These forums constituted public spaces within the public administration and eventually contributed to the construction of an accessible metro network. The analysis is also connected to Athens hosting of the Olympic and Paralympic Games of 2004 which created increasing demands for constructing an accessible built environment, including the metro. Furthermore, the study also draws upon the discussion within the EU on disability and on which kind of consequences this discussion implied for the developing metro. The theoretical basis for this study is located at the intersection of two broad fields, namely science and technology studies (S&TS) and disability studies.