Balanced Development Portal

Floor Layout Plan

Floor Layout Plan

The Yeongdong-daero underground space complex development is a metropolitan complex transfer center - the largest underground space development in Korean history - extending from Samseong Station to Bongeunsa Station. The five-floor underground facility covers 170,000㎡, incorporating integrated station (GTX, Wirye-Sinsa Line), bus transfer station, and public/commercial facilities.

Integrated Station

지상광장 / B1F - 유턴존, 삼성역 대합실 / B2F - 봉은사역 대합실, 공공상업 / B3F - 봉은사역 승강장, 버스주차장, 통합대합실, 삼성역 승강장 / B4(M)F - 위례신사 삼성역 승강장 / B4F / B5F - GTX 승강장
The plan concentrates railway stations including GTX-A/C and Wirye-Sinsa Line in one location to function as a railway hub.Floor-by-floor layout considers convenience of transfer between public/commercial spaces and transportation modes, planning to establish convenient transfer system with COEX-Yeongdong-daero-Hyundai GBC underground connection axis and subway lines 2 and 9.
통합역사 정보
Ground Level Ground Plaza
Underground Level 1 Bus station, Line 2 Samseong Station concourse, U-turn zone
Underground Level 2 Public/commercial facilities, Samseong Station platform
Underground Level 3 Integrated concourse, bus/auxiliary parking (101 vehicles)
Underground Level 4 Wirye-Sinsa Line platform
Underground Level 5 GTX-A/C platform

Citizen Convenience Spaces

Will provide various citizen convenience spaces including ground plaza and public/commercial spaces, creating large-scale underground city spatially and functionally connected with COEX and GBC through commercial and public cultural facilities.

  • Central Plaza in Downtown Gangnam
    260m ground plaza including central plaza and terrace garden on Yeongdong-daero surface
  • Transportation Hub
    Maximized transportation convenience through systematic arrangement of new railway stations and bus transfer stations
  • Underground City Center
    Organic pedestrian network construction through walkway connections with adjacent buildings including COEX, GBC
  • Samseong Station Concourse
    Improved congestion and shortened movement through Line 2 Samseong Station concourse expansion and additional pedestrian paths
  • Transfer/Pedestrian Planning
    Optimized three-dimensional pedestrian transfer system with direct escalator connections from bus station to public/commercial facilities and integrated concourse
  • Services for the Transportation Vulnerable
    Barrier-free routes for mobility impaired users, vertical circulation planning, installation of disabled toilets (36) and nursing rooms (10)

Bus Transfer Station

Plans to create bus transfer station considering convenient transfers between bus and rail to handle the demand for bus usage

  • Underground central bus-only lanes with transfer station

  • 10 central bus stops secured considering future demand

  • Comfortable indoor waiting area (natural lighting and air conditioning)

  • Bus stop installation at Bongeunsa Station U-turn zone

Parking Facilities

버스/부설 주차장 정보
Auxiliary Parking (47 spaces)
  • Secured parking for essential vehicles including standard, disabled, and service vehicles
Bus Parking (54 spaces)
  • Tourist bus parking considering International Exchange Complex District visitor demand including Yeongdong-daero, GRC, and COEX
  • Plans to share and provide bus parking information within GITC, Hyundai GBC (37 spaces), Sports Complex site (approximately 200 spaces planned) for efficient operation during full capacity