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Description of device
The ZDR 6020 is a vehicle mounted mobile retro-reflectometer with 300
measurements per second guaranteeing accurate and continuous coverage of the
night visibility (R
L
) of all types and colours of road markings.
A measuring head can be mounted on either side of the measuring vehicle, which
allows for continuous recording of the R
L
-values of road markings at normal traffic
speed up to 150 km/h (93 mph). Mobile measurements are particularly helpful on
motorways or roads with heavy traffic, as no additional safety precautions need to
be taken.
In particular, this instrument has the following features
•
Double and even triple lines are recognised and measurements are
automatically stored separately.
•
Handheld precision at traffic speed up to 150 km/h (93 mph).
•
Industrial grade ruggedized touchscreen tablet.
•
The intuitive RetroGrabber software is easy to use for one- or two-person
operation.
•
The data file generated by the RetroGrabber software is text based and any
type of spreadsheet software can be used for further analysis of the
measurements. The included mapping and data analysis software
“MappingTools” is used for graphical visualization and one-click generation of
measuring reports.
•
A progression chart shows the R
L
-values. This graph is a visual support and
shows irregularities of the measured results at a glance.
•
Data transfer into Microsoft Excel enables statistical analysis of the
measurements. The measuring data can also be transferred to in-house
databases.
•
All important data are recorded at the same time: R
L
, day contrast ratio, GPS
co-ordinates, ambient temperature (°C/°F), relative humidity (rH %), speed,
picture, voice recording as well as date and time.
•
Measures in all ambient lighting conditions, Day and Night, even bright
sunlight.
•
Integrated camera for road surveillance with 10 meter (32.81 ft.) picture
sequence.
•
Microphone for voice recording to comment on special events e.g. roadworks.
•
GPS with dead reckoning (DR) providing accurate GPS signals even in urban
canyons and tunnels.
•
Easy and fast attaching and removing of the measuring head.
•
Easy and fast calibration.
•
To guide the driver the R
L
values are shown in a bar diagram on the driver
display.
