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Introduction 5 costs. Moreover, such hardcopy records are vulnerable to damage or destruction in the event of fire, flooding, or other catastrophic event. The automation of right-of-way functions and data access and integration using information technology, including geospatial applications, are needed to enable transportation agencies to meet their performance objectives under increasing pressure to optimize resources and improve accessibility of right-of-way information. Public Law 91-646 as Amended (Uniform Act) Protection of individual rights and ensuring fair and equitable treatment of businesses related to the acquisition of personal property for federal or federally assisted projects is covered under Public Law 91-646, The Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970, as amended. Commonly called the Uniform Act, this law is codified primarily in 23 CFR 710 and is divided into three major sections or titles: Title I contains the general provisions of the law and consists primarily of definitions. Title II, "Uniform Relocation Assistance," describes agency responsibilities to persons or businesses that are displaced. Title III, "Uniform Real Property Acquisition Policy," specifies agency requirements associated with obtaining real property. This guide and the accompanying logical model have been developed based on the requirements of the Uniform Act as described in the Federal Highway Administration's Project Development Guide. (FHWA 2006) NCHRP Project to Develop a Logical Model In recognition of a desire to improve their ability to deliver land for transportation projects, state transportation agencies, through the NCHRP, established NCHRP Project 8-55, "Integrating Geospatial Technologies into the Right-of-Way Data-Management Process," which identified data elements necessary to support the automation of right-of-way functions as the first step in the development of a fully operational information management system. (Hancock 2006a,b) That project was followed by NCHRP Project 8-55A, "Developing a Logical Model for a Geospatial Right-of-Way Land Management System," which included the objective of developing an enterprise-level logical model for a prototypical geospatially enabled, right-of-way information management system. The research plan for NCHRP 8-55A included the following tasks: 1. Literature Review: (1) updated the literature review performed for NCHRP 8-55 with a lit- erature search of key features and attributes of a logical model for a prototypical geospatially enabled, right-of-way management system for state transportation agencies and (2) reviewed other initiatives that relate to this project. 2. Logical Model Outline: prepared outlines of the logical model for the right-of-way business areas of appraisal, acquisition, relocation, and property management. These outlines consist primarily of process flow diagrams, business process models, and use case models as mapped to the business process models. 3. Logical Model: prepared the logical model for a prototypical enterprise-level, geospatially enabled information management system for state transportation agencies for the right-of-way business areas of appraisal, acquisition, relocation, and property management based on the outline from Task 2. This task provided (1) enterprise-wide standardization guidelines for data elements that cross multiple activities to ensure interoperability with other agency systems,