For many years there has been a need to assemble, under one cover, state-of-the-knowledge guidance on the better practices begin employed to address the full array of issues which can arise from highway and utility facilities haring common right-of-way. The Highway/Utility Guide is such a document. It provides useful information relevant to joint use issues, a historical perspective, and good current practices. Issues addressed in the Highway/Utility Guide include: planning and coordination, design, permits, information management and mapping, notification procedures, legal, safety, construction, maintenance, reimbursement, and others.
CI/ASCE Standard 38-02 presents a credible system for classifying the quality of utility location information that is placed in design plans. The Standard addresses issues such as: how utility information can be obtained, what technologies are available to obtain that information; how that information can be conveyed to the information users; who should be responsible for typical collection and depiction tasks; what factors determine which utility quality level attribute to assign to data; and what the relative costs and benefits of the various quality levels are. Used as a reference or as part of a specification, the Standard will assist engineers, project and utility owners, and constructors in developing strategies to reduce risk by improving the reliability of information on existing subsurface utilities in a defined manner.