Line C, Rome's third subway under the new Town General Plan, will directly connect distant areas by crossing the city from northwest to southeast, so greatly extending the existing metro network. The current route, which is 25.5 km long and includes 30 stations, begins in the municipality of Monte Compatri, follows the Termini-Pantano railway, crosses underground just before the Grande Raccordo Anulare and heads into the historic centre to the Mazzini district, keeping about 30 m above street level.

The route is divided into various sections: T2 under design, T3 under construction, T4-T5, T6 and T7 with the Granite Depot already operational. This division results from functional reasons, design needs, approvals and funding. T2 section will include a functional sub-section: the Venezia-Colosseum/Imperial Fora section, which will extend beyond the end of Section T3 for about 250 m. It includes the Venezia Station, the fire station shaft and railway communication between odd and even track. The final design of the Venezia-Imperial Fora sub-section, including the Venezia Station, was submitted to the Conference of Services in July 2021, including the positive outcome of the verification of compliance with VIA (EIA) requirements.

The financing of the total amount of € 755,000,000.00 is ensured for € 145,000,000.00 by Decree Law No. 133 of 12 September 2014, coordinated with Conversion Law No. 164 of 11 November 2014, and for € 610,000,000.00 by the resources referred to in paragraph 393 of Article 1 of Law No. 234 of 30 December 2021 (Budget Law 2022) allocated by Interministerial Decree No. 97 of 20 April 2022.

The final design of T2 Section Venezia-Imperial Fora/Colosseum sub-section was approved by Order No. 3 of 30 December 2022 prot.l79/M of the Extraordinary Commissioner. By Service Order No. 35 of 17/01/2023, the Sole Project Manager (RUP) ordered the start of the executive design activities, based on the approved final design drawings, taking into account the requirements attached to the Technical Verification Minutes, and subjected the start of the work to the approval for the three parts of the executive design.

The first part of the executive project of the Venezia-Colosseum/Imperial Fora section was delivered by the General Contractor Metro C S.c.p.A. on 13/02/2023 and 17/02/2023 and was then supplemented with the additional submissions on 18.04.2023.

This was followed by the delivery of the drawings constituting the additional two sections, into which the issuance and approval of the executive project of the sub-section in question was divided.

By Approval Act No. 13/line "C" dated 16/06/2023, the Contracting Authority approved the drafts of the 1st part of the Executive Project. By Approval Act No. 16/line "C" dated 24/07/2023 the Contracting Authority approved the executive project second part of the Venezia-Imperial Fora/Colosseum sub-section and finally by Approval Act No. 1/2024 dated 10/01/2024 the Contracting Authority approved the executive project for the third part.

By Service Order No. 39 formulated by the Project Manager on 26 September 2023, the start of activities took place and excavations on Piazza Venezia are underway, and on 1 October 2023, the Executive Work Program of the section was updated (from 17/01/2023 to 03/09/2033)

As of 30.11.2023 (SAL 2 as of 30/06/2023) there are 2 SALs issued for the T2 Venezia - Colosseum/Imperial Fora sub-section and 2 payment certificates issued for a total certified amount to the credit of the General Contractor of € 13,983,074.43 plus VAT.

The amount corresponds to approximately 2% of the total reference amount from the updated Economic Framework (€ 588,424,487.84).