# Yongin–Seoul Expressway

Yongin–Seoul Expressway (Korean: 용인서울고속도로, part of Expressway 171) is an expressway in South Korea, connecting Yongin, Gyeonggi and Gangnam-gu, Seoul. Informally known as the Gyeongsu Expressway(Korean: 경수고속도로), it is the only expressway in South Korea not directly connected to another expressway. Although it shares the same designation number, it is not directly connected to Osan-Hwaseong Expressway either. Plans have been made to connect the Busan side of Gyeongbu Expressway and Yongin-side Geumto Tollgate.

## History

The Yongin-Seoul Expressway (a part of National Highway No. 171) is a highway in South Korea that connects Yongin-si, Gyeonggi-do to Seocho-gu, Seoul. It has the same route number as the Osan Hwaseong Expressway, but is not directly connected. There are currently no rest areas on the entire route.
The expressway was designed to reduce traffic on the Gyeongbu Expressway with the expansion of Southern Gyeonggi. Construction started in October 2005, and was completed on July 1, 2009. The opening ceremony occurred on 30 June 2009, with Gyeonggi governor Kim Mun-su in attendance. The expressway has been open to traffic since midnight on July 1 (KST). It was built to order and is operated by Kyeongsu Expressway Corporation for 30 years. 1.5 trillion won was spent to build this expressway, with Kyeongsu Expressway Corp investing 570 billion won.

## Timeline

* 16 September 2002: Proposal for BTO was submitted.
* 23 December 2003: Kyeong-su Expressway Corp established.
* 3 November 2004: Expressway number 141 is assigned for Yongin–Seoul Expressway.
* 20 May 2005: Groundbreaking ceremony occurred.
* 31 October 2005: Construction started for Heungdeok IC ~ Heonneung IC.
* 3 January 2008: Expressway number 171 is reassigned.
* 30 June 2009: Establishing ceremony occurred in Geumto Tollgate.
* 1 July 2009: Heungdeok IC ~ Heonneung IC established.

## Toll

Yongin–Seoul Expressway was built and is operated by a private investment company. The toll collection system is different from how Korea Expressway collects tolls. Toll fees were originally 1,800 won, but later raised to 2,000 won. 1,100 won is collected at W. Suji Tollgate, and 900 Won is collected at Geumto Tollgate. Traffic from Heungdeok interchange and Gwanggyo-Sanghyeon interchange leaving W. Suji Tollgate pay an additional 600 won. The same applies for vehicles entering W. Suji in the direction of Heungdeok.

## Composition

Lanes
* Godeung IC ~ Heonneung IC: 4 lanes
* Heungdeok IC ~ Godeung IC: 6 lanes
Length
* 22.9 Km
Speed limit
* All area Max. 100 km/h

## List of facilities

* Number stands for IC and JC number, TG stands for Tollgate, SA for Service Area.
| Number | Name | Korean name | Hanja name | Length between each other | Length | Connection | Place | Place | Place | Note |
| Connected with Regional road no.311 |||||||||||
| Connected with Osan-Hwaseong Expressway through Bongyeong-ro |||||||||||
| 1 | Heungdeok | 흥덕 나들목 | 興德 | - | 0.00 | National Route 42, Local Route 98 Local Route 311 Bongyeong-ro | Gyeonggi Province | Yongin | Yongin | Direct connection with Local Route 311. |
| 2 | Gwanggyo-Sanghyeon | 광교상현 나들목 | 光敎上峴 | 3.20 | 3.20 | National Route 43 (Yeongdong Expressway) | Gyeonggi Province | Suwon | Suwon | Entrance/exit to Yongin is disallowed |
| 3 | W. Suji | 서수지나들목 | 西水枝 | 2.10 | 5.30 | | Gyeonggi Province | Yongin | Yongin | Entrance on Yongin direction and exit on Seoul direction will pay on W. Suji TG. |
| TG | W. Suji TG | 서수지요금소 | 西水枝料金所 | | | | Gyeonggi Province | Yongin | Yongin | Main Tollgate |
| 4 | W.Bundang (Gogi) | 서분당 (고기) | 西盆唐 (古基) | 5.07 | 10.37 | Local Route 334 | Gyeonggi Province | Yongin | Yongin | |
| 5 | W.Pangyo | 서판교 | 西板橋 | 2.83 | 13.20 | Local Route 84 | Gyeonggi Province | Seongnam | Seongnam | |
| TG | Geumto TG | 금토요금소 | 金土料金所 | | | | Gyeonggi Province | Seongnam | Seongnam | Main Tollgate |
| 5-1 | Geumto JC | 금토 분기점 | 金土分岐點 | Gyeongbu Expressway | | | Gyeonggi Province | Seongnam | Seongnam |
| 6 | Godeung | 고등나들목 | 高登 | 4.12 | 17.32 | Local Route 23 Cheonggyesan-ro | Gyeonggi Province | Seongnam | Seongnam | Entrance and exit on Seoul direction is disallowed |
| 7 | Heolleung | 헌릉나들목 | 獻陵 | 4.96 | 22.28 | Seoul City Route 41 (Heolleung-ro) | Seoul | Seocho-gu | Gangnam-gu | |
| | Seoul Endpoint | | | 0.62 | 22.90 | | Seoul | Seocho-gu | Gangnam-gu | |