The plan covers around 326 square kilometers of the city and includes venues that have been categorized as relevant to everyday life, such as parks, parking lots and recreational sites.

Places like individual households, schools, factories and warehouses are excluded from the plan.

The city plans to set up 23,750 wireless access points by 2022, tripling the number of wireless access points from the current 7,420.

The city said it plans to first install the wireless access points in public venues such as bus stops and the public transportation system.

Increasing Wi-Fi coverage is part of the city's 102.7 billion-won ($859 million) plan to build a smart network that encompasses Wi-Fi and internet of things (IoT) technology.

Of the total, 47 percent of the budget will be used to expand the public Wi-Fi network. The remaining 52 percent will be flagged for building wired and wireless telecommunications infrastructure and developing IoT technology.

The plan is expected to enable various IoT services such as smart parking services and safety services for the elderly living alone.

City officials estimated that the plan, if completed, will cut annual mobile fees by a combined 3.87 trillion won for around 6.12 million users who use 9.6 gigabytes of internet each month.

Seoul city first opened up its Wi-Fi network to the public in 2011 and has been increasing wireless access points across the city. (Yonhap)