The increasing NIMBY (Not-In-My-Back-Yard) concept forces the sitting of urban service facility to change form top-down approaches to bottom-up approaches which take account of people's attitudes and their willingness-to-accept (WTA) of urban service facilities. It follows that studies of people's WTA of urban service facilities and factors influencing people's WTA are becoming increasingly important. This article adopts the Environment-Behavior research approach to studying NIMBY effects of 67 urban service facilities in the Taipei area in 1995. Using the WTA concept, this article defines NIMBY effects of urban service facilities. This article also explores what factors affect the WTA of these facilities. Strategies to overcome NIMBY effects of urban service facilities are proposed in the last section.