TLM measures all types of road markings at a simulated distance of 30 m with the highest level of accuracy.
TLM is used mounted on a vehicle measuring retroreflection at traffic speed, providing full overview of the condition of the road markings.
The instrument operates with an accuracy of typically +/- 5 % and a repeatability of typically of +/- 3 %.
TLM is a robust, reliable and advanced instrument designed for professionals using modern digital camera and illumination technology and data presentation in real time.
This technology results in high measurement accuracy independent of changes in the geometry of the system caused by vehicle bouncing during driving.
TLM system consists of three parts
·· The sensor unit mounted on the outsite of the vehicle contaning camera and flash system
·· The real time processor placed inside the vehicle
·· The GUI (Graphical User Interface) Tablet
PC placed next to the driver
TLM measures RL (nighttime visibility) under dry conditions, daylight contrast as well as records line geometry and missing or non-working road studs (RRPMs).
TLM measures white and yellow road markings up to 25 mm/1 inch in profile depth with no adjustments necessary.
Calibration and change of light source can be done with a simple operation in the field.
TLM comes with GPS and can be delivered with DMI (Distance Measuring Instrument) and an overhead camera.
GPS makes it possible to determine exactly where specific measurements have been carried out.
A DMI unit ensures correct distance measures if GPS contact cannot be established.
An overhead camera supports additional visual inspection of problem areas when data are reviewed.
Measurement data, GPS data and other recorded data will be automatically stored.
The system gives the driver the option of marking incidents during operation in the log as well as inform about possible problems and malfunctions.
TLM features
·· Provides continuous measurements of full width and length of markings at traffic speed
·· Digital camera and real-time image processing
·· Measures RL under dry conditions
·· Measures 1x1 m/3x3 feet pr picture, 25 picture per sec.
·· Accuracy in line with hand-held retroreflectometers
·· Measures daylight contrast
·· Measures plane and profiled markings up to 25 mm/1 inch
·· Shows and stores day and time
·· Records road studs (RRPMs)
·· Records line width
·· Provides average values between 1 m/3 feet and indefinite