How did group 49.1 split?

Group 49.1, passenger rail transport, interurban, split into two classes in NACE Rev. 2.1: class 49.11, passenger heavy rail transport, and class 49.12, other passenger rail transport. Paragraph 161 of the manual states the split. The group continues to exist, with the same title and place in division 49. The split does not determine a code for a specific reader.

What does the split separate?

The split separates heavy rail passenger transport from other passenger rail transport. The titles state the dividing line in heading form: heavy rail on one side, and other passenger rail on the other. The word other in the second title signals the residual character of class 49.12, as it does throughout the classification. The class holds the passenger rail work that does not belong in the heavy rail class, according to the explanatory notes for the two classes. Section 4 does not reproduce the notes, and this guide does not state an inclusion list for either class that it has not verified from the notes. The notes state what counts as heavy rail, and what counts as other passenger rail, in general terms.

The split is a group level split into classes, in the same pattern as the wood group split in the manufacturing cluster. The group level remains continuous, and the class level gains detail. Statistics that previously reported one figure for the group can now report two figures, one for each class, where the data allow it. The change increases the resolution of the statistics for passenger rail transport, without moving the group in the hierarchy. A reader comparing group level figures across versions will see continuity, and a reader comparing class level figures will see a new breakdown that did not exist in the old structure.

Why does the distinction matter for reading statistics?

The distinction matters because heavy rail and other passenger rail operate under different infrastructure and service patterns, and the manual groups them separately so that statistics can show the two patterns apart. The grouping principle in the manual is the character of the activity, including the process and technique of production, as paragraph 55 states for the criteria adopted in developing the classification. A single group figure would hide the difference between the two patterns. Two class figures show it, where the underlying data are collected at class level. The distinction is statistical, and it carries no statement about the quality, safety or regulation of either kind of transport, which are questions for other instruments and authorities.

The distinction also matters for correspondence reading. An old group figure, collected when the group was undifferentiated at class level, cannot be divided into the two new classes by any rule in section 4. The division of historical figures, where it is done at all, is done through backcasting and double reporting plans, which Eurostat describes on its overview page as part of the roll out of NACE Rev. 2.1. The correspondence table records the class level move, and the backcasting plans record how historical series are restated. Neither document picks a new class for a specific unit, and neither should be quoted as if it did.

How is the split shown?

| NACE Rev. 2.1 class | Title in the manual |

|---|---|

| 49.11 | Passenger heavy rail transport |

| 49.12 | Other passenger rail transport |

The table follows paragraph 161. It lists the two classes and their titles, and nothing more, because section 4 states nothing more about the split. The explanatory notes for the two classes, and the correspondence table, supply the content and the mapping. This guide table is a summary of the manual summary, not a statement of either class content, and must not be quoted as one.

What does a split not decide?

A service split is a change in the published categories. It is not a decision about a specific unit. The correspondence table records the scopes where one old group or class becomes two or more new classes, and the explanatory note for each new class states its inclusions and exclusions. Neither document picks a new class for a specific unit. The classification is statistical only. What the code does not decide includes tax, licensing, social security, collective agreement and funding questions, and the entry is confirmed by the institute or register holding it.

Where is a split class confirmed?

The check for a split class runs in three steps. First, the section 4 summary in the manual for the change as adopted. Second, the explanatory notes for the new classes, for inclusions and exclusions. Third comes the institute or register holding the entry actually held. The first step is supplied here, and the other two are pointed to.

Keep the group continuity apart from the new class detail, read the notes for classes 49.11 and 49.12, and confirm the entry with the institute or register that holds it.