1. All of the plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

A. On July 2011, the Mayor of Incheon Metropolitan City prepared the “Form of the Convention on the Relocation of the Electric Transmission Lines (hereinafter “the instant construction”) between the head of the Seoul metropolitan area headquarters of the Korea Rail Network Authority (hereinafter “KR”) and the head of the Seoul metropolitan area headquarters of the Korea Rail Network Authority (hereinafter “KR”) for the removal and removal of the safety obstacles to the construction of the Incheon Winter Games to be used in the Atoan games in 2014.

The main contents are that the defendant bears all the expenses incurred in the relocation of obstacles, the expenses incurred in the relocation and removal of obstacles shall be calculated in accordance with the Electric Utility Act, the related laws and regulations, and the rules of the Railroad Corporation, and the construction design and supervision expenses are included in the relocation construction expenses, and the design and material acquisition of the construction works and the construction and supervision performed by the defendant are examined by the Railroad Corporation.

B. On September 5, 2011, the Defendant publicly announced the instant construction project. On September 22, 2011, the Defendant announced the instant construction project, and on September 22, 2011, “the instant contract” between KRW 2,741,14,400 for construction cost (including KRW 7,264,50 for value-added tax and usage inspection fees, and KRW 2,748,408,90 for construction cost, including KRW 2,748,400 for the instant construction cost, and KRW 2,748,408,90 for the instant construction cost, which was jointly awarded a successful bid, and KRW 2,741,144,

AB concluded the agreement.

C. On December 20, 2011, the Plaintiffs re-established a design map and requested the Korea Railroad Corporation to deliberate on the design. The Plaintiffs demanded the Defendant to pay KRW 3,590,180,000 increased by KRW 849,035,60 in the amount of the original construction cost.

Since then, the plaintiffs, not in KRW 849,035,60, but in KRW 627,806,862, the amount of the construction price increase again adjusted.

After completion of the instant construction work on March 20, 2012, the Plaintiffs requested the Defendant to conduct a completion inspection and completed it. The Plaintiffs totaled KRW 1,917,00,000 among the construction price, and KRW 320,959,00 among the construction price, and KRW 2,237,959.