The American Society of Civil Engineers (ASCE) has developed a National Consensus Standard titled ASCE C-I , Standard Guidelines for the Collection. ASCE Standard Guideline for the. Collection and Depiction of Existing Subsurface Utility Data. Statement of Purpose. The American Public Works. of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation policies, and utility design. (CI/ASCE 02).
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This standard addresses issues such as roles of stakeholders and how utility information can be obtained, and was a call to action from the Malaysian government due to increasing demands for improvements on basic infrastructure facilities including utilities.
ASCE | T2 Utility Engineers
This activity is called “designating”. The services that can be provided through either of these contracts include: Quality Level A Information obtained by exposing and measuring the precise horizontal and vertical position of a utility at a specific point. The first concept is the means of classifying the reliability of the existence and location of utilities already installed and hidden in the ground. Engineer, Land Surveyor on 38-022 12, Should be a video presentation.
Additional information such as utility material, condition, size, soil awce, and paving thickness also assists the designer and utility owner in their decisions. Slight adjustments in the design may produce substantial cost savings by eliminating utility relocations.
ASCE Standard 38-02
It sets out the accuracy to which the data is captured for specific purposes, the quality expected of that data and a means by which to assess and indicate the confidence that can be placed in the data. However, it is not necessary to have taken that course prior to this one. This page was last edited on 10 Marchat The appropriate use of SUE services can prevent these problems.
Accuracy levels expand upon ASCE Quality Level A, prescribing a finer level of detail to define the positional location of the infrastructure. The standard also xsce guidance on how subsurface utility information can be obtained and conveyed to users.
Subsurface Utility Engineering – Part 2: Understanding CI/ASCE 38-02
Combining these concepts will lead to a continual reduction in the risks created by underground utilities during future projects involving excavation of any kind. With this massive web of active and abandoned underground utility systems in place, all new excavations are at risk of encountering unplanned utility conflicts and causing potential damage. Subsurface Utility Engineering SUE refers to a branch of engineering that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation policies, and utility design.
The ASCE standard presents a system to classify the quality of existing subsurface utility data, in accordance with four quality levels:.
Define several terms used in the SUE industry. Views Read Edit View history.
Once such approval is obtained, the Agreements Office will coordinate issuance of the Notice to Proceed letter with the Region. Click on the state to expand the license or professional organization that applies to the course.
QL C information may not, however, eliminate all inaccuracies; nor will it reveal an unrecorded line that has no surface features. Thanks By zaki W. A conflict matrix is also created to evaluate and compare collected utility information with project plans, identify conflicts and propose solutions. In this situation a SUE provider would collect the required information and add it to the asset management database, according to the four quality levels prescribed by ASCE Standard Two-dimensional mapping information is obtained.
Its usefulness may be limited to early design stage project planning and route selection activities or to projects with minimal planned excavations.
Subsurface utility engineering – Wikipedia
The Standard is supported by the Malaysian government but is not backed by an Association or governing body. This resulted in many unnecessary utility relocations, construction delays, and unexpected encounters with subsurface utilities.
Rich Horstmann may be contacted for information regarding the level of utilization of each consultant contract. Vacuum excavation techniques are employed to expose and record the precise horizontal and vertical position of the assets.
The standard defined SUE and set guidance for the collection and depiction of subsurface utility information. Quality Level B Information obtained through the application of appropriate surface geophysical techniques to determine the existence and approximate horizontal position of subsurface utilities. Therefore, its usefulness may be limited to preliminary design reviews or to projects with minimal anticipated conflicts.
Quality Level D Information derived from existing records or oral recollections.