The location of utilities buried beneath the built environment has always been a concern for those conducting work that involves excavation or the placement of items into the ground. Whether physically removing material or driving piles, posts, and more, the potential for accidental utility strikes is increasing with the movement of more traditional utilities from above ground to below. Also, the addition of utilities and new technology in underground spaces that hasn't existed in the past, such as fiber optics and more highspeed telecommunication lines, is occupying more space. Traditional methods of surveying, in combination with surface geophysics and the development and improvement of processes and technologies to track the location of buried assets led to the engineering services category termed Subsurface Utility Engineering (SUE). In order to aid utility engineers and consultants who are responsible for the collection of utility data this research aimed to help identify a way to compare the various technologies and incorporate information about the individual project in order to choose the most appropriate locating method for a project with a defined set of parameters. The result was the development of standard evaluation forms that can be sent to technology vendors and consultants to evaluate the performance and limitations of a technology. This data can then be compiled into a database located within an Excel-based program created to compare the technologies. The program, VT PALMS (Virginia Tech Program for Asset Locating Method Selection), consists of the performance and economic databases, a project information Page sheet, and the results of the comparison of each technology in the database to the information on the project information sheet. The results are presented in three ways; 1) a speedometer chart with a needle that indicates the percentage of the parameters used in the database that are compatible - also referred to as the Reliability Factor, 2) a matrix view that indicates the parameters where a potential conflict may exist, and 3) an economic indicator that shows the comparable cost of using each technology listed in the database. / Master of Science

Utility coordination is an exceedingly complex effort of managing, communicating, and facilitating the avoidance and relocation of utility facilities as needed for highway projects. Utility coordination occurs throughout the design and delivery of a project and best practices are used to make sure this occurs efficiently and in the best interest of the public, who are not only the taxpayers but also the ratepayers. Recent research has attempted to enhance utility location technology and procedures, instill frameworks and tools for utility coordination, and proceduralize risk management relative to utility coordination. However, research attempting to improve various aspects of utility coordination simultaneously has led to a lack of consensus on how to integrate these research efforts into an effective standard of practice. These is also not a standard of practice for quantifying utility related risks for transportation projects. This research will attempt to build consensus and contribute to the body of knowledge in this area of utility coordination by presenting an approach to assess the relative utility risks of a project and align current and new practices to minimize those risks. Through statistical analysis of historical project data regarding utility coordination schedules and costs for transportation projects in Kentucky, this study was able to produce a model that estimates utility related risk early in transportation project development. With input and evaluation by subject matter experts, utility coordination best practices were collected and aligned to utility risks on transportation projects. A decision support tool was developed to assist in the use of the mathematical utility risk model and the best practices associated with the varying risk levels. This research also finds that there are disparities among utility stakeholders on transportation projects in regard to the effectiveness or satisfaction with particular best practices. This finding presents the need for early involvement and collaborative utility coordination to select practices that ensure utility related issues on transportation projects are minimized. The research also presents that increased use of alternative contracting methods can pose significant challenges to utility coordination on transportation projects. This stems from the finding that utility coordination practices were not uniformly effective across these varying procurement methods. Furthermore, as Departments of Transportation continue to deal with resource issues, one of which being manpower within utility coordination, the use of consultants for utility coordination presents its own set of complexities. The research finds the best application of consult-led utility coordination is through third-part consultants specializing in utility coordination, those who have been state-specifically trained for utility coordination, and prequalified for utility coordination work.