Lehrstuhl fur¨ Massivbauder Technischen Universit¨at Munc¨ henAcceptability of Civil Engineering DecisionsInvolving Human ConsequencesAlbrecht LentzVollst¨andiger Abdruck der von der Fakult¨ at fur¨ Bauingenieur- und Vermessungswesen derTechnischen Universit¨at Munc¨ hen zur Erlangung des akademischen Grades einesDoktor-Ingenieursgenehmigten Dissertation.Vorsitzender: Univ.-Prof. Dr.-Ing. habil, Dr.-Ing. E.h. K. ZilchPruf¨ er der Dissertation:1. apl. Prof. Dr.-Ing., Dr.-Ing. habil. R. Rackwitz2. Univ.-Prof. Dr.-Ing., Dr.-Ing. E.h. P. Schießl3. Prof. Dr. M. H. Faber,Eidgen¨ ossische Technische Hochschule Zu¨rich /SchweizDie Dissertation wurde am 12.09.2006 bei der Technischen Universit¨at Mun¨ chen ein-gereicht und durch die Fakult¨ at fur¨ Bauingenieur- und Vermessungswesen am 18.01.2007angenommen.AbstractIn most cases, heightened structural safety leads to higher costs and therefore to a reductionof average disposable income. At the same time, average life expectancy rises because of theensuing lower failure rates. From income and life expectancy, it is possible to derive socio-economic utility functions such as the life quality index. A safety-relevant decision is deemedacceptable if the utility function value rises or remains at least equal. The thesis extendsthis approach in order to cover not only mortality effects, but equally effects upon morbidity.Furthermore, the effect of delays (latency) is investigated.