Track section with yellow measuring sensors on the sleepers along the rail

Monitoring that keeps rail operations safe.

Track monitoring to RIL 883.8100A01, plus railway bridges, retaining structures and works in the track area: we capture track geometry automatically, transmit the data remotely and alert proactively, before operations are endangered.

Benefits for railways

Your advantage with railways and rail infrastructure

Whether railway undertaking, infrastructure operator, engineering firm or contractor: a standards-compliant geo-monitoring system creates traceability, keeps operations safe and lets you react immediately to critical movements.

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Compliant with RIL

We monitor track and switches to RIL 883.8100A01. Position, level, cant and twist are captured traceably, at the required measuring point density.

Safety in operation

Works in the track environment, drilling and ramming work, or temporary states such as auxiliary bridges stay under control. You see critical changes in track geometry immediately.

Proactive alerting

Data is captured automatically and transmitted remotely. When defined thresholds are reached, the system alerts, so you can react before operations are endangered.

24/7 operation, without your own team

On request, we take over monitoring as an outsourced department: setup, evaluation and alerting around the clock, without tying up your own survey staff.

Live monitor

Track geometry in view, to RIL 883.8100A01

Prisms sit every five sleepers. Start the simulation of ramming work next to the line and see how position, level, cant and twist change until a threshold triggers the alert.

Ramming work Prism targets: every 5 sleepers (~3 m)

Track geometry status

Online

Position

lateral track position

0 mm

Threshold 6 mm

Level

vertical level

0 mm

Threshold 8 mm

Cant

relative level between rails

0 mm

Threshold 10 mm

Twist

twist per base length

0 mm

Threshold 8 mm

Schematic illustration, not measurement data

Areas of application

Where monitoring is needed on the railway

From site conditions in the track environment to railway bridges and retaining structures: we monitor the points where movement can endanger rail operations.

Works in the track environment

Continuous capture of track geometry during construction phases, before settlement and shifts become critical.

Drilling & ramming work

Early detection of the smallest positional changes from interventions in the subsoil next to the line.

Auxiliary bridges

Monitoring of cant, twist and positional changes on temporary structures.

Switches & crossings

Geo-monitoring for track and switches to RIL, including on special constructions.

Railway bridges

Crack widths, tilt and deformation on railway overpasses, continuous and tied to the standard.

Retaining structures

Monitor retaining walls and embankments along the line for shifting and tilting.

The heart of every railway application is standards-compliant track monitoring. Details, measurement concept and process are on the solution page.

Go to track monitoring

RIL 883.8100A01

Track monitoring that meets the standard

RIL 883.8100A01, Deutsche Bahn’s guideline for track monitoring, defines minimum requirements for measurement and evaluation in geo-monitoring of track and switches. We implement these requirements with high-precision total-station monitoring.

For railway overpasses and engineering structures, the infrastructure operator’s regulations also apply additionally, for example RIL 804 for railway bridges. We align the measurement concept with this.

Go to track monitoring
01

Four mandatory quantities

At minimum, position, level, relative level between rails (cant) and twist are monitored. Within the hazard analysis, the scope can be extended, for example to gauge or absolute track geometry.

02

Measuring point density

Prism targets are placed at an interval of five sleepers per rail, typically every 3.00 m with a 60 cm sleeper spacing.

03

Measuring range

The monitored range extends at least 25 m beyond the area of possible change and is extended on a project-specific basis.

04

Total-station monitoring

Automated measurement cycles capture the prisms in the sleeper grid with high precision. Evaluation is robust and transmitted remotely, for continuous monitoring and alerting.

Monitoring in the track environment

Works on the track, a railway bridge or a retaining structure: tell us about the project. We will propose a measurement concept to RIL 883.8100A01.

Peter Nater Peter Nater

Data platform

All readings on one platform

The sensors transmit their readings wirelessly to the data platform, where they are evaluated, documented and continuously checked against your thresholds.

  • AI-assisted data analysis
  • User-focused reporting
  • Continuous evaluation
  • Warning and alarm thresholds
  • Alerts by email and text message
  • Remote access around the clock
More on monitoring & alerting
Monitoring platform Sample view
Reading history within limits
Warning threshold
  • AI-assisted data analysis Condition within limits
  • User-focused reporting Report ready
  • Alerting Thresholds monitored

Basis for decisions

What you can decide in the railway environment

In rail operations, possessions are scarce and speed restrictions are costly. Both are decisions that depend on track position and the structural condition.

  1. 01

    Impose or lift a speed restriction

    The track position measured to RIL 883.8100A01 proves whether a speed restriction is needed and when it can be lifted again.

  2. 02

    Use possessions wisely

    Track possessions are the scarcest resource. Knowing the condition lets you plan exactly the work that is actually due.

  3. 03

    Schedule tamping and maintenance work

    The track position trend shows when a measure becomes due, instead of scheduling it by cycle.

  4. 04

    Secure works in the track area

    Vibration and settlement during a construction measure next to the track are monitored continuously and trigger a notification when a threshold is reached.

  5. 05

    Reduce walks in the hazard area

    Every measurement on the track means safety personnel and operational restrictions. Autonomous sensors deliver the values without access.

FAQ

Frequently asked questions about railway monitoring

Which quantities must be monitored at minimum under RIL 883.8100A01?
At minimum position, level, relative level between rails (cant) and twist. Within the hazard analysis the scope can be extended, for example to gauge or absolute track geometry.
At what interval are the measuring points placed?
The prism targets are placed at an interval of five sleepers per rail. With a sleeper spacing of 60 cm, that typically gives 3.00 m between measuring points.
How large must the monitored range be?
The measuring range extends at least 25 m beyond the area of possible change and is extended on a project-specific basis, so that adjacent sections are also reliably captured.
Why is total-station monitoring the standard?
It enables high-precision, automated capture of track geometry via prisms in the RIL grid. This makes it suitable for continuous monitoring and proactive alerting when thresholds are exceeded.
When is additional gauge monitoring needed?
When the hazard analysis requires it, for example on special constructions such as bridges with individual support points. We define the extended measuring scope together with you.
Can you take over the monitoring completely?
Yes. You get everything from one source, from concept through installation and operation to alerting. On request, we operate the monitoring as an outsourced department around the clock, without tying up your own survey staff.

Project inquiry

Monitoring for your line

Tell us about the construction project, line and hazard situation. You will receive a solid initial assessment shortly, including measurement concept and point grid to RIL.

+49 6742 8599600 DE +41 41 670 00 11 CH [email protected]
Project inquiry