Page 3 - Railways

www.moniterra.engineering RAILWAYS

Rail Track position

The most important principle of every activity on rails is the
accurate measurement of the geometry and absolute position of
the track rails.

To achieve that goal we chose to use AMBERG GRP FX
Systems, since 2008, performing fast and accurate surveying
services, leading our clients to deliver in time, high quality results
at best value for money costs.

Athens Metro rehabilitation
This system is equipped with high-end technology sensors to
record Cant, Gauge and Chainage. It is getting and correcting its
position using the control points with an on board total station or
disto-meter and an integrated IMU sensor.

A measurement of the geometry and absolute position of the
track rails takes place, that can be compared with the design
study and allocate any potential deviations between actual
situation and theoretical alignment.

Furthermore, this measurement will be the reference rail track
line for all the following measurements within future maintenance
time.
Track Geometry

Analysis of the recorded inner and outer track geometry,
can done using the dedicated software, so that, evaluation,
conclusions and actions will follow.

Benefits:

• High accuracy (up to < +/- 1.0mm)
• Speed – minimum time presence in track
• Safety – minimum personnel presence in track
• Minimum effect by environmental conditions
• Fully automated recordings
Athens Metro rehabilitation

Single CP measurement

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