About Amerisurv| Contact    
Magazine | Newsletter    
Flickr Photos | Advertise    
HomeNewsNewsletterAmerisurv DirectoryJobsStoreAuthorsHistoryArchivesBlogVideosEvents
Register to receive the Amerisurv Newsletter | Also See Our LiDAR News Newsletter | RSS Feed  

Sponsored By

Software Reviews
Continuing Series
An RTN expert provides everything you need to know about network-corrected real-time GNSS observations.
Click Here to begin the series,
or view the Article PDF's Here
76-PageFlip Compilation
of the entire series
Test Yourself

Got Answers?
Test your knowledge with NCEES-level questions.
  Start HERE
Meet the Authors
Check out our fine lineup of writers. Each an expert in his or her field.
Wow Factor
Sponsored By

Product Reviews
Partner Sites







Spatial Media LLC properties




  The American Surveyor     

New Simplified Accuracy Check of As-Built Plans for Recently Buried Fibre Optic Lines Print E-mail
Written by Ashtech   
Monday, 27 June 2011

June 21st, 2011 - Romans, France - Confirming the accuracy of as-built plans for recently buried fiber optic, gas and electric lines has become much simpler and more efficient with the aid of the Ashtech® ProMark™ 500 GNSS receiver and a new EdiPocket® GIS software module. SIEA, a French association that manages energy, communication, electricity and gas networks for the 419 communes of the Ain department in eastern France, has found the innovative new method both simple and efficient, and it expects that it can lead to improved contractor performance.

As-built plans are prepared and delivered by the contractor at the completion of the job. As built plans confirm the project as it has been actually built, showing any changes that were made from the planned and approved plans. SIEA checks the as-built plans to verify and assess their reliability. To accomplish this, SIEA personnel survey and record the actual position of the completed work to compare actual location and the submitted as-built plans. In the process, SIEA produces an accurate reference map for future maintenance and excavation accident prevention.

To start the verification, the as-built plans are downloaded into the EdiPocket software residing on the ProMark 500 rover’s field terminal. The “Measure” menu has a function called “Accuracy Verification” that enables the operator to survey and record the position of the buried line at verification points as the operator follows the covered trench. According to Bruno Forget, SIEA GIS Department manager, most of the current checking is done on newly laid fibre-optic cables. A typical fibre-optic trench, filled in just after cable laying, is about 10 cm wide, which is more than adequate for accuracy verification. The positions are saved in a Shapefile then transferred to an Excel file, which makes the verification calculation and gives the result as-built plan “accepted” or “rejected.”

SIEA uses the Ashtech ProMark 500 receiver, in L1/L2 GPS mode receiving real-time corrections from TERIA, the French GNSS reference station network, and a MobileMapper® CX field terminal. The reliability and ease-of-use of the ProMark 500 rover makes it possible for virtually any operators to perform verification surveys with centimetre-level accuracy in real-time.

Bruno Forget adds that the ProMark 500 receiver with the software EdiPocket not only saves time for SIEA verification crews, but also increases the reliability and consistency of the entire geographic information system for SIEA.

About EdiPocket
Editop® and EdiPocket® are GIS software products developed by SIRAP which distributes Ashtech products in France. www.sirap.fr

About SIEA
Syndicat Intercommunal d'énergie et de e-communication de l'Ain. www.siea.fr/

About the Ashtech Brand
Recognized as an industry leading brand, Ashtech has been developing GNSS technology for more than 25 years. Ashtech is the creator of BLADE technology, which is a unique method for using multiple GNSS constellations for high-accuracy positioning. Ashtech also introduced the MobileMapper series of products for GIS and mapping, as well as the ProFlex™ 500 and ProMark series, including the ProMark 500, ProMark 200 and ProMark 100, a well-recognized GNSS land survey product line currently on the market. Following the recent acquisition of Ashtech by Trimble, the Ashtech teams, GNSS solutions portfolio and distribution networks are now part of the Spectra Precision Business. The Ashtech brand has a worldwide presence and is located in Carquefou, France, with offices in Beijing, China, and Singapore, as well as affiliates in Santa Clara, Calif. and Moscow. For more information on Ashtech, visit: www.ashtech.com.

About the Spectra Precision Brand
Spectra Precision has long been an established brand, known for delivering quality products to the construction market. Focusing on the specific needs of the conventional surveying market, the Spectra Precision brand offers a complete product portfolio including Global Navigation Satellite Systems (GNSS), Global Positioning Systems (GPS), optical total stations, data collection hardware, field and office software, as well as a wide range of construction tools. Spectra Precision surveying equipment is an economical choice that utilizes technologies for optimal efficiency. With convenience and reliability as the foundation of the Spectra Precision brand, it is an ideal choice for value. The Spectra Precision brand is backed with the strong technical support that users have come to expect from a quality name in surveying and construction.

< Prev   Next >


Amerisurv Exclusive Online-only Article ticker
Featured Amerisurv Events
List Your Event Here
contact Amerisurv


Javad Intros
Total Solution

press [at] amerisurv.com
Online Internet Content


News Feeds

Subscribe to Amerisurv news & updates via RSS or get our Feedburn
xml feed

Need Help? See this RSS Tutorial

Historic Maps

post a job
Reach our audience of Professional land surveyors and Geo-Technology professionals with your GeoJobs career ad. Feel free to contact us if you need additional information.


Social Bookmarks

Amerisurv on Facebook 

Amerisurv LinkedIn Group 

Amerisurv Flickr Photos 

Amerisurv videos on YouTube 



The American Surveyor © All rights reserved / Privacy Statement
Spatial Media LLC
7820B Wormans Mill Road, #236
Frederick MD 21701
301-695-1538 - fax