Numbering

Lost with train numbering? It's understandable; the topic is not simple.

On the traintrack, we primarily use the train's serial number. It is generally affixed to the front and sides of the vehicle.

This number is often included in the UIC numbers of the vehicle, which is a much stricter numbering system, similar to a car's license plate.

UIC Numbering

This long series of numbers and letters on the side of vehicles. All vehicles in Europe have a UIC number.

Example:

Example of a UIC Number

For the SNCF TGV 801:

93 87 0310 301-5F-SNCF

• 9: Vehicle identification, engine unit
• 3: Complementary digit for the type
• 87: Code of the owning network, here France
• 0: Locomotive/Engine unit
• 310301: Serial number (301 for TGV 801)
• 5: Control digits
• F: Country of operation
• SNCF: Company owning the equipment

For the SNCB Piggy 829

• 94: Type of car and mode of international use
• 88: Code of the owning network, here Belgium
• 0: Locomotive/Engine unit
• 75: Piggy
• 829: Serial number
• 3: Control digits
• 7:
• B: Country of operation
• B: Company owning the equipment

It is noted that the UIC number does not systematically include the number indicated on the front of the train.

Functional Use

• Identification: Allows precise identification of each vehicle, facilitating maintenance, tracking, and management.
• Interoperability: Ensures that vehicles can be identified and used in different countries and rail networks without confusion.
• Data Exchange: Supports data exchange between rail operators, infrastructure managers, and authorities.
• Fleet Management: Aids in the management and tracking of rolling stock, thus improving logistical efficiency.
• Safety and Compliance: Helps to ensure that vehicles meet safety standards and regulatory compliance in different regions.