Solution
The M1 federal highway, at the 129-130KM mark from Moscow, was chosen to be the trial site as it is a fast moving 4 lane dual carriageway with no central reservation barrier. The Q1PM installation of Clearview Intelligence SolarLite F Series road studs consisted of 3 lines of studs at interval of 15m for approx. 0.5 of km on a long sweeping left-hand bend.
The studs were installed in June 2015, prior to the 2015/16 winter and consisted of 90 SolarLite studs. 60 red LED studs were placed on the outside lanes and 30 white LED studs placed down the central lane. 30 of the units were installed with specially designed snow plough housings in order to protect the stud from any potential machinery damage.
Conclusion
In April 2016, after the winter months, a group of technical specialists from AvtoDor undertook a detailed physical inspection of the roadway and studs. The results were excellent with all 90 studs remaining fully operational, including those that were without snow plough housings. Due to the harsh Russian winter, the road was often cleared using snowploughs and sweepers, with grit applied as well.
Based on the results of the trial, AvtoDor has provided a letter of product recommendation, noting that they have no issues using Clearview Intelligence SolarLite studs elsewhere within the Russian road network.
Download PDF: Russian Road Stud trial case study
