Bucharest Metrorex Project: Romania’s Metro System Overview
Bucharest Metrorex expands: New Line M5 & airport connections are planned, boosting Romania’s railway network.

Bucharest Metrorex: A Comprehensive Overview of Romania’s Metro System
This article provides a detailed analysis of the Bucharest Metrorex system, examining its historical development, infrastructure, rolling stock, signaling and communication systems, and future expansion plans. The project’s aims are to understand the evolution of Bucharest’s metro, assess its current capabilities and limitations, and project its future development based on current trends and expansion initiatives. This includes analyzing the technological choices made throughout its history, evaluating operational efficiency, and exploring the impact of technological advancements on the system’s capacity and sustainability. Furthermore, the analysis will delve into the economic and social ramifications of metro expansion on the city’s development and its role in providing efficient and sustainable urban mobility. The long-term sustainability and resilience of the Metrorex system are key considerations, with particular emphasis on future-proofing the system against potential challenges.
Historical Development and Infrastructure
The Bucharest Metro (Metrorex) commenced operations on November 16, 1979, with the inauguration of Line M1’s initial segment between Timpuri Noi and Semanatoarea, spanning 10.1 km and encompassing six stations. This initial project, conceived much earlier, was delayed by World War II and finally realized due to the pressing needs of urban development in the 1970s. Subsequent expansions in 1981, 1983, 1984, 1987, and 1989 extended Line M1 to its current length. The network currently comprises several lines, each with its own operational characteristics and history. The system utilizes standard gauge (1,435 mm) track with a 750V DC third rail power supply, supplemented by overhead electrification in depot yards. All stations are designed to accommodate six-car train formations (129m long), with trains operating at a maximum speed of 80 km/h (50 mph). The planned Line M5, however, is designed for a higher operational speed of 100 km/h (60 mph).
Rolling Stock and Technological Advancements
The Bucharest Metro’s initial fleet consisted of 251 two-car units manufactured by ASTRA, a Romanian company, primarily serving Line M1. These units generally operated in six-car configurations. The construction of additional lines necessitated the acquisition of more rolling stock. In 2001-2002, Metrorex ordered 18 six-car Bombardier Movia units for Line M2, featuring gangways for passenger circulation. A further order for six additional Movia trains (36 vehicles) was placed with Bombardier in 2007, with a value of €33 million, co-financed by Metrorex and the European Investment Bank. Final assembly of these trains was undertaken by Bombardier’s Romanian partner, Electroputere, in Craiova, showcasing a successful collaboration between international and domestic manufacturers. The MITRAC propulsion and control systems were supplied by Bombardier Sweden, while the car bodies and bogies originated from Bombardier’s German facilities in Görlitz and Siegen. The modernization and expansion of the rolling stock demonstrates a commitment to improve passenger comfort, capacity, and reliability.
Signaling and Communications Systems
Bucharest Metro’s signaling system initially adhered to Romanian mainline railway practices, employing a three-aspect signaling system (yellow, red, green) that determined the speed and stopping distance of trains. This system allowed a minimum headway (the time interval between trains) of 90 seconds. However, Metrorex is progressively implementing Automatic Train Protection (ATP) systems to enhance safety and potentially reduce headways, improving operational efficiency and capacity. Line M2 was the first to receive the ATP upgrade, and the eventual deployment across all lines is envisioned. The transition to ATP represents a significant upgrade in safety and operational performance, aligning Bucharest Metro with international best practices in modern metro systems.
Future Expansion and Development
Metrorex is actively pursuing ambitious expansion plans to enhance the network’s reach and capacity. Key projects include extending Line M4 to connect with Henri Coanda International Airport (the largest airport in Romania) and Aurel Vlaicu International Airport, currently served only by bus transport. The construction of a completely new line, M5, running from Drumul Taberei to Pantelimon (the terminus of Line M1), is also planned. This 18 km line, encompassing 19 stations, is projected to cost €740 million. The expected completion date for Line M5 is prior to 2020. These expansion projects collectively aim to increase the network length from 63 km to 70 km, adding approximately 50 stations and significantly improving connectivity within the Bucharest metropolitan area. These initiatives highlight the continuous growth and importance of the Metrorex system in meeting the increasing transportation demands of a rapidly developing city.
Conclusions
The Bucharest Metrorex system, while facing various challenges throughout its development, has demonstrated remarkable resilience and adaptability. From its initial modest beginnings to its current multi-line network, Metrorex has played a vital role in shaping Bucharest’s urban landscape. The strategic integration of advanced technology, such as ATP systems and the procurement of modern rolling stock from Bombardier, indicates a commitment to enhancing safety, efficiency, and passenger comfort. The ongoing expansion plans, particularly the extension of Line M4 to the airports and the introduction of Line M5, represent a crucial step toward improving connectivity and accommodating the city’s growing population. The significant investment in infrastructure and technology signifies the Romanian government’s commitment to sustainable urban development and efficient public transportation. The successful collaboration between Metrorex and international partners like Bombardier and Electroputere also underscores the benefits of fostering public-private partnerships in infrastructure projects. Future success hinges on continued investment, effective project management, and the timely implementation of technological advancements to ensure the long-term sustainability and viability of the Bucharest Metrorex network. The project’s overarching goal of providing a safe, efficient, and reliable public transport system is well on its way to being realized. The continued focus on expansion and modernization will be pivotal in ensuring that the Bucharest Metro remains a critical component of the city’s future development, serving both the present and future generations of Bucharest residents.
| Line | Length (km) | Stations | Opening Year | Connection |
|---|---|---|---|---|
| M1 | 33 | (Not specified in the original text) | 1979 (with extensions) | Various parts of Bucharest |
| M2 | 18.7 | (Not specified in the original text) | 1986-1987 | Various parts of Bucharest |
| M3 | (Not specified in the original text) | (Not specified in the original text) | 1989 (still under development) | Overlaps with M1 |
| M4 | 3.7 | (Not specified in the original text) | 2000 | Gara de Nord to Mai |
| M5 (Planned) | 18 | 19 | Before 2020 (projected) | Drumul Taberei to Pantelimon |
Company Information:
- Metrorex: The operator of the Bucharest Metro system.
- ASTRA: A Romanian company that initially built rolling stock for the Bucharest Metro.
- Bombardier: A multinational transportation company that provided Movia trainsets and MITRAC propulsion systems.
- Electroputere: A Romanian company that participated in the final assembly of Bombardier Movia trainsets.


