[Example] Road ledger annex drawing modification work

Adoption of network-type RTK-GPS for road ledger attachment modification work!

We would like to introduce a case study where the Kansai Division of Pasco Co., Ltd. adopted a network-type RTK-GPS using the JENOBA method for the "Road Ledger Appendix Modification Work." The site is a general national road under the jurisdiction of the Osaka National Highway Office, with a total length of approximately 85 km. Due to the short construction period of 4 months, it was necessary to consider the work methods and processes. Given the work conditions, we established a policy for improving quality and accuracy, particularly in the measurement of reference points, which involved GPS static surveying using electronic reference points and the implementation of network-type RTK-GPS using the JENOBA method (both indirect and direct methods with a single receiver). 【Solution】 - Adopted network-type RTK-GPS using the JENOBA method for the installation of relevant reference points. - For areas with poor overhead visibility during reference point surveying, a combination of GPS and total stations (TS) was used. - Implemented a point allocation plan that took into account areas under construction. - Considered the efficiency of work through planning that accounted for existing and planned reference points from other agencies. - Established reference points within the system (including those from other agencies) and introduced an inspection system using ArcGIS. *For more details, please refer to the PDF document or feel free to contact us.

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