The Seoul Metropolitan City is planning to collect, gather, manage urban data such as fine dust, parking, and bad smell through IoT (Internet of Things) sensors that are installed throughout the city and make the data public. It is going to operate IoT sensor project called “S-DoT”, which has been carried on as part of the city’s Smart City Project since last year, on full-scale.
The Seoul Metropolitan City announced that it has established a “IoT city data system” and is going to operate the system starting from April. The system will gather urban data that has been managed individually by the Seoul Metropolitan City, autonomous districts, and investment institutions and organizations funded by the city with data from the S-DoT at the center and analyze and utilize such data. Total of 132.58 million data has been accumulated between January of 2019 and February of 2020.
Autonomous districts and public institutions check and download data gathered through the system and locations of sensors. They can also visualize data.
The Seoul Metropolitan City has been collecting an average of 1.15 million data daily through 10,000 IoT sensors such as the S-DoT. The S-DoT especially can collect 10 different kinds of data like fine dust, temperature, humidity, illuminance, vibration, noise, ultraviolet rays, direction of the wind, wind speed, and floating population.
The city has been installing 850 S-DoTs in different places within the city since last year. It is planning to increase the number to 2,500 by 2022. Total of 35 smart city service data such as detection of fire within traditional markets and measurement of air quality inside of daycare centers will be added to data collected by the S-DoT. Smart city service data is also collected through IoT sensors.

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<Kids are playing at the Yeoouido Square under a blue sky on February 27th when fine dust level was low. (Picture does not have a direct relation with the article) Staff Reporter Lee, Donggeun | foto@etnews.com >

The city is going to make collected data public through various ways starting from the end of April.
The private sector, the South Korean Government, and schools can share and use data to develop high-quality services. For example, based on data on dust and noise collected in real time by S-DoTs installed at construction sites, it is possible to establish ways to reduce amount of dust and noise by working with construction-related companies.
The Seoul Metropolitan City is going to conduct a research this year on relationship between traffic and fine dust, noise, vibration, and temperature near roads along with University of Seoul and Seoul Digital Foundation based on the IoT city data system. This research will then be used as a supporting data to develop high-quality services and to establish policies.
Prior to establishing the system, the city analyzed air quality of 6 public facilities and came up with ways to improve each facility. It compared the data collected from IoT sensors and the data of the quality of the outside air measured by the South Korean Government.
According to the city, the indoor air quality of a senior citizen center was impacted by location, characteristic, structure, and number of occupancy. A center with a kitchen had high level of fine dust from its kitchen. The level of fine dust inside of a library was measured high when there was high traffic such as during a lunch time and times when many people were entering the library. The city can figure out issues through data and come up with solutions.
“Urban data collected through IoT sensors will become a source of implementing a smart city.” said Director General Lee Won-mok of the Seoul Metropolitan City’s Smart City Policy. “We are going to use various data collected from different parts of the city to better the city and increase the quality of the “IoT city data system” so that policies that the public can actually feel can be implemented.”
Staff Reporter Kim, Siso | siso@etnews.com