Volume One - TRB's Airport Cooperative Research Program (ACRP) Report 27: Enhancing Airport Land Use Compatibility, Volume 1: Land Use Fundamentals and Implementation Resources is part of a three-volume report that explores issues related to land use around airports. Volume 1 provides guidance designed to help protect airports from incompatible land uses that impair current and future airport and aircraft operations and safety. Volume 2: Land Use Survey and Case Study Summaries includes 15 case studies that targeted a wide range of airports and land use issues. The case study sites include large commercial service, military, and general aviation airports and are geographically diverse. Volume 2 also provides states and local governments with examples and a common basis for establishing zoning that protects the public interest and investment in airports. Volume 3 includes aircraft accident data, a framework for an economic assessment of airport costs, and an annotated bibliography. Volumes 1 and 2 are available in print and online. Volume 3 is only available in electronic format.