ATB

Automatische Treinbeïnvloeding

Dutch continuous cab system displaying speed limits via track AC currents with automatic brake enforcement.

Driving Difficulty Level 3 / 5

Intermediate

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

menu_book System Overview

ATB (specifically ATB-EG and ATB-NG) is the primary safety system used throughout the Dutch railway network (Nederlandse Spoorwegen). It transmits frequency-coded pulses through the running rails into receiver coils in the locomotive.

settings How It Operates

check_circle Cab indicators display the permitted maximum speed (typically 40, 60, 80, 130, or 140 km/h).
check_circle When entering a block with a lower speed limit, a loud bell or gong rings in the cab.
check_circle The driver must immediately initiate braking and decrease speed below the target within a strict time window.
check_circle If the driver does not apply sufficient braking power within 3 seconds, emergency brakes apply automatically.

visibility In-Cab Visual & Audio Indications

notifications Speed Indicator Lamps

Illuminated numbers: 40, 60, 80, 130, 140 on the driver desk.

notifications Gong Tone

High-pitched gong or buzzer sounds whenever permitted speed drops.

lightbulb Driver Tips to Avoid Penalty Brakes

verified React promptly to the gong sound; ATB gives very little tolerance before enforcing penalty brakes.

route Compatible Routes

All Routes arrow_forward

No specific routes mapped yet for this system in the database.