Integrated map of 15 types of underground spatial information will be made

By 2019 underground spatial information of 85 cities will be integrated improve safety of underground space

□ 15 types of underground spatial information, currently governed by five different ministries, 14 laws and 4 systems, will be integrated into a comprehensive map by 2019. If these types of information are combined with Internet of Things(IoT) technologies, underground space will be managed in a more secure way through scientific analysis and forecast.

ㅇ The Ministry of Land, Infrastructure and Transport (MOLIT, Minister: Yoo ILHO) announces a plan to confirm and establish a "Plan for Establishing an Integrated Map of Underground Spatial Information (2016-2019)." This plan is to integrate underground spatial information organized by different ministries into a comprehensive system for more efficient management, provision and utilization of such information.

□ MOLIT set up a public-private task force on land subsidence and announced "a measure against ground subsidence" in December, 2014 when a series of subsidence happened across the country.

ㅇ As part of the measure, the ministry is planning and working on the integrated underground spatial map (integrated map) to provide information services. The plan aims to integrate 15 types of underground spatial information^* scattered across 5 ministries, governed by 14 laws and operated by 4 systems.

* 15 types of information including underground facilities (water supply·sewerage, communications, heating, electricity, gas), underground structure(utility tunnel·subway·underground passage/roadway·shopping areas·parking lot), ground(drilling·tube well·geographical features)

□ To establish"the plan for the integrated map (draft)," between December 2014 and April 2015 the ministry outsourced a research study to Korea Institute of Civil Engineering and Building Technology, a research institute specialized in the field and held expert meetings, presentations for local governments and public hearings to collect opinions from interested parties.

□ With the vision of "realizing safe territory where happy living flourishes," the plan has 4 strategies; integrated underground spatial information, information system for everyone, seamless one-stop support, and easy and transparent guideline.

□ With the strategies, the plan has 4 top priorities.

ㅇ MOLIT will establish a map that integrates underground spatial informationincluding underground facilities, underground structures and ground information, that are basis of developing, utilizing and managing underground space.

- To this end, the ministry will integrate underground spatial information of 8 metropolitan cities, including the capital city of Seoul out of 85 local governmentsbetween 2016 and 2017, by incorporating factors such as density of facilities, volume and relevance to the plan. Then, it will finalize the integration by including information of the rest of the cities between 2018 and 2019.

ㅇ Since information on underground facility, drilling and tube well and geological information have already been established. The ministry will utilize them to link these types of information together while newly organizing* information on underground structures(underground roadway, underground shopping area, subway, etc.).

* The same standards applied to 3-dimensional spatial information will be applied and ground spatial information linked

- It is impossible to measure the location of underground structures since they are covered by ground. So MOLIT plans to utilize as-built drawings to construct 3-dimensional representation of underground structures and improve the accuracy of the 3-D information through supplementary location surveying.

ㅇ MOLIT will establish a comprehensive application system that features representation, analysis, link and utilization of information on the map. The information is scattered across several ministries, and will be amassed and processed.

* Existing hardware and software that are currently run by MOLIT and local governments will be fully utilized.

ㅇ Just managing underground facilities is not sufficient for preventing accidents in underground space since they are caused by various factors.

- To improve this, the ministry will combine the integrated map with information and communications technologies(ICT) to set up a support system for reviewing underground accidents, including ground subsidence.

ㅇ MOLIT will designate a specialized agency for providing consulting for establishing, renewing and utilizing the integrated map.

* Ground for establishing the specialized agency: ｢special act on managing underground safety(draft)｣ (Proposed on June 4, 2015).

- Before establishing the integrated map of metropolitan cities (by 2017), the ministry first sets up the "underground spatial information support center" to support easy use of information yet to be integrated.

- After the establishment, technical support for utilization of the underground spatial information will be provided, and the information will be managed in a systemic and comprehensive way.

ㅇ MOLIT will support enactment of special acts(enforcement act, enforcement rule included) to set out related provisions on collecting, establishing and utilizing underground spatial information.

* ｢Special act on managing underground safety(draft)｣ (Proposed on June 4, 2015).

ㅇ In addition, to ensure continuity of the established·integrated·renewed maps of underground information, work regulations and guidelines of the map will be set up and amended.

□ Meanwhile, MOLIT will work on a pilot project on the integrated map by the end of the year to successfully conduct the 2016 project in accordance with the plan.

ㅇ As a result, the ministry designated Seoul, Busan, Daejeon and Sejong metropolitan cities, since in these cities, subsidence accidents frequently occur and facilities are concentrated.

ㅇ After consulting with those local governments, it will designate specific target areas, as well as set up plans to utilize integrated information and devise technical application of related systems.

□ An official from MOLIT said, "the integrated map will be utilized as useful basic data for managing, designing and building ground and underground facilities to ensure its safety.

In addition, if IoT technologies, such as detection technologies for ground subsidence and fluctuations of ground water level, are combined with the integrated map, it will allow scientific analysis of the underground, improving the safety of underground space."