Integra-Signum / ZUB

Integra-Signum & ZUB 121 / 262

Traditional Swiss safety systems using track magnets to verify signal aspects and curve deceleration.

Driving Difficulty Level 3 / 5

Intermediate

Based on vigilance required, reaction window, and braking penalty severity.

menu_book System Overview

Integra-Signum and its speed-supervision enhancement ZUB (Zugbeeinflussung) have protected Swiss federal railways (SBB CFF FFS) for decades. Magnets placed between and outside the rails transmit warnings and emergency stops.

settings How It Operates

check_circle Integra-Signum warns when passing caution signals with a cab buzzer and dashboard indicator lamp, requiring driver acknowledgment within 1 second.
check_circle Passing an absolute stop signal immediately drops the main brake pipe.
check_circle ZUB 121 / 262 adds continuous curve monitoring between distant and home signals to prevent overspeed approaching reds.

visibility In-Cab Visual & Audio Indications

notifications Yellow Warning Light

Illuminates upon passing restrictive distant signals.

notifications Buzzer Tone

Sharp audible beep requiring instant cancellation.

lightbulb Driver Tips to Avoid Penalty Brakes

verified Swiss response windows are fast; always be ready to press Q immediately upon passing a yellow signal.

route Compatible Routes

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Arosa Linie

From Chur to Arosa