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ISO/DIS 23987-1

Railway Infrastructure — Switches and crossings — Part 1: Vocabulary

General information

40.99     May 21, 2026

ISO

ISO/TC 269/SC 1

International Standard

01.040.93     93.100     45.080     01.040.45  

Scope

This document specifies the terms and definitions for switches and crossings. With the assistance of diagrams, the various components are given definitions, and these specific names are regarded as obligatory.
The terms and definitions cover the constituent parts, design geometry and kinematics of switches and crossings, as well as the movement of switches. This standard is applicable to the design, manufacturing, laying, and maintenance of railway switches and crossings.

Life cycle

NOW

IN_DEVELOPMENT
ISO/DIS 23987-1
40.99 Full report circulated: DIS approved for registration as FDIS
May 21, 2026