Three-dimensional map of Daegu offers accurate view of city on par with being there in person
Last month, Daegu Metropolitan City began providing a “Daegu 3D Map,” which provides a view of the city so sharp that you feel as if you are actually there.
Main screen of Daegu 3D Map
m The Daegu 3D Map service, as its name suggests, provides a three-dimensional view of all of Daegu’s buildings. This allows the viewer to feel as if he or she is looking down at the city from the sky and can see every nook and cranny.
m The Fourth Industrial Revolution is bringing change to the foundations of industry through hyper-connectivity and hyper-intelligence, connecting people, objects and spaces to one another. The latest ICT (IoT, big data, mobile technology, etc.) and 3D maps can be utilized together to resolve a variety of urban problems, such as those related to transportation, the environment, and energy, and enhancing the effectiveness and safety of urban functions. Smart City is a platform with the capability to do just this and facilitate changing the city’s spatial arrangement. As such, a preemptive response to these new technologies is needed now more than ever before.
m 3D maps, which are necessary for the establishment of a smart city foundation, are no longer optional. Conventional 3D maps take a lot of time to create through manual illustrations and are not cost-effective. Multinational corporations like Google are already providing 3D maps through a technique that uses multiple photographs to automatically create 3D videos. In its attempts to keep up with this technological change, Daegu Metropolitan City has become the first local government in Korea to create its own 3D maps with an automatic implementation technique.
m The 3D map system was established and a platform developed between March and December 2017, and a trial operation period took place last month. After making modifications to resolve problematic aspects, the map will begin normal service very soon.
m The 3D platform in use is a program (WebGL) that enables 3D graphic images on web browsers such as Internet Explorer (IE) through basic programing language (HTML5) for web standards. This latest technology allows users to access services through a variety of web browsers, including IE, Chrome and Safari) without needing to install ActiveX or other similar programs.
m Daegu’s urban environment can now be experienced in 3D through the Internet. Digital twinning* technology creates a 3D map that is so sharp and vivid that the three-dimensional buildings look as if you are actually in front of them. Other information provided by the 3D map include the amount of sunlight for any building on the map based on time of day and season, the degree of visible domain for certain areas, and analysis of a first-person landscape view. There is also a three-dimensional measurement function for altitude, floor area and gradient.
＊Digital twinning: a technology that creates a “twin” version of a real-life object via computer and predicts all possible angles that may be viewed through computer simulation
m Another advantage of the Daegu 3D Map is the real estate information it provides in real time through connections with the Ministry of Land, Infrastructure and Transport’s system (including official land values and land register) that are not available through private portals. For multi-unit dwellings, a single click on the desired building immediately shows real transaction data on sales and monthly rent/jeonse (deposit-based lease) right on the map.
m The Daegu 3D Map is also the first in the country to include public transportation. For increased convenience, the map includes Daegu’s three subway lines as well as all metropolitan bus routes. Information on bus routes and arrival times for each stop are available in real time. There are also indoor floor maps for eight public facilities often visited by the public, such as Banwoldang Station, Jungangno Station, Dongdaegu Station, and the Complex Transfer Center.
m For tourists, there is a virtual tour service that shows all of Daegu’s major attractions in each of five areas, such as the downtown core and the Apsan and Palgongsan areas, as well as by theme (downtown circulating tour, Jung-gu alley tour, etc.), enabling a “spoiler” experience of a particular area or tourist attraction beforehand.
m The Daegu 3D Map is easily accessible online at http://3d.daegu.go.kr or by entering “Daegu 3D” on any major Korean search engine site. This service is expected to provide diverse administrative information and make living in and traveling around Daegu much more convenient. To further enhance accessibility by local residents, Daegu Metropolitan City signed an MOU with Naver Corporation on offering the Daegu area in 3D on Naver Map.