1. MarkingCollector - TRL’s new approach to lane marking condition assessment.
November 2016

2. Need for monitoring of marking condition
Road markings are critically important to driver safety and of growing importance to the use of driver aids and automated vehicles
Maintaining the asset can be expensive and disruptive – intelligent asset management is required
50% of the network annually
Retroreflectivity = amount of light reflected in the direction of the source
Wear = basically the remaining amount of the line which is visable
Luminance = effectivly how bright the line colour of the line is to the eye
Skid risitance = self explanatory annually on 25 % of critical areas of the network i.e., stop lines, large areas of paint (arrows at mortorway junctions)

3. Need for traffic speed Solution
Handheld solutions require traffic management and surveyors on the carriageway increasing both risk and cost
2 options for survey – static testing using hand held instruments or driven susrvey

4. Current traffic speed technology
Current traffic speed monitoring equipment:
Often protrudes from side of vehicle, raising safety concerns
Requires a special driving line meaning the equipment cant be integrated with other surface condition assessment (which requires a normal driving line), lowers productivity / increases cost
Sometimes requires nighttime collection (meaning video cant be collected), lowers productivity / increases cost
Some systems suffer from data repeatability problems – quality
Generally only collect one lane edge marking with each pass of the vehicle so repeat runs are needed, lowers productivity / increases cost
In lane markings not detected - quality

5. TRL’s MarkingCollector
No requirement for traffic management
No surveyors on the carriageway
Improved data quality over currently deployed technology
Allows data to be collected in the normal driving line in any lighting condition
Can be combined with other sensors to allow all surface condition data to be collected
Can provide data for both lane edges and in-lane markings
Cost comparable with other traffic speed other technology