Understanding Utility Cadd Standards (RV-6688)
This 4-hour interactive online course is intended to help engineers, designers and draftspersons depict existing underground utility systems on engineering and construction drawings. The course opens by discussing the computer drafting standards being used by numerous agencies. The main components of these standards, linestyles and symbols, will be introduced. The two (2) main computer drafting platforms will be discussed (Microstation by Bentley and AutoCAD by Autodesk), emphasizing the differences found when making utility maps. Terms from both platforms will be provided. The course will describe the types of computer support files needed to install the cadd standards and aid with finding the components related to underground utilities.
The course will discuss the mapping of underground utilities from utility records or by using subsurface utility engineering techniques (utility designating). The reader will become familiar with the field utility survey, coded data collection and the data processing that associate the drafting standards to the features found at the site.
Next, the generic utility drafting standards will be presented and discussed. These standards intend to take the best ideas from the drafting standards reviewed and be a superset of all types of utility feature symbols seen in the standards of others. These standards could be a starting point for an individual working without any.
The focus will then shift to a discussion of the components of fourteen (14) underground utility systems found on site development and transportation projects.
•Water Collection, Distribution and Fire Protection
•Gas Transmission and Distribution
•Electrical Transmission and Distribution
•Sanitary Sewer Collection Systems
•Storm Drainage Systems
•Traffic Signalization Control Systems
•Street Lighting and Sign Lighting Systems
•Miscellaneous and Unknown Underground Utilities
•Chilled Water Systems
The linestyles and symbols that correspond to the components of the underground utility systems will be illustrated. Examples of the utility mapping created from these standards will be shown.
The cadd standards being used by several state transportation departments will be discussed. Charts of the utility related cadd standards from several agencies will be presented in an easy to use column format.
Health, Safety and Welfare
At the conclusion of this course, you will:
•Be familiar with the mechanisms used in drafting software to depict underground utility systems.
•Be familiar with the locations of files that contain the drafting standards and the process of associating the appropriate files.
•Understand the differences between Microstation by Bentley and AutoCAD by Autodesk in creating and associating drafting symbology.
•Know how to review the linestyles and symbols available in the drafting standards.
•Be provided a set of utility cadd standards that takes the best components of numerous other sets. From this discussion, an understanding of scale factors, fonts and text sizes as it relates to the depiction of utility lines and symbols will be developed.
•Be familiar with the most common components of underground utility systems and the corresponding drafting standards.
•Understand the survey process that utilizes a coded data system that when associated to the drafting standards during the office processing produces the appropriate linestyles and symbols on the screen and in a mapping file. The final utility cadd work will be described, which is an important step in the presentation of a comprehensive utility map.
Diagrams of the lines and symbols available in the cadd standards of nine (9) east coast transporation departments will be provided to show the student how to organize the entities for use. These diagrams conveniently show the utility features grouped by utility type.
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