HSM (High Speed Monitor) - Road Markings
Road markings are a critical element of our pavement network. Because they are located directly within the driver’s cone of vision they are positioned to provide continuous information that helps the driver to correctly position the vehicle on the carriageway.
Background
The way road markings are inspected is changing, soon all horizontal road markings will have to be inspected annually using a High Speed Monitor (HSM) and junction markings will be assessed by hand held devices to assess their retroreflectivity and wear.
The purpose of these surveys is twofold, one to determine when the deterioration is such, that delivery of safety benefits is compromised and two, to evaluate their overall condition so that a forward programme of replacement can be established. This will ensure that all markings are maintained to a consistent and satisfactory level and value for money is achieved.
PTS can also carry out an inventory check to ensure that all markings and studs conform to the Traffic Signs Regulations and General Directions (TSRGD).
All our surveys are carried out to TD 26/04 and conform to the current British/European Standard BS EN 1436
The Service
PTS use a Laserlux system, which has undergone and completed correlation trials with TRL for use on the UK trunk road network. It is one of only two systems available.
Using Laserlux PTS can offer the following package:
- Data collection at variable speeds up to 70mph
- Video capture – the measurement of the retroreflectivity is inset on a video of the survey
- Data collected with GPS allowing the results are plotted on a map background using GIS software
- A surveillance camera ensures the vehicle is positioned correctly at all times
- A forward renewal programme of between 1 to 10 years
