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Transport Scotland - PRIME – New road markings transform behaviour of motorcyclists on bends

20th Anniversary, 2023

From 2020-2022, road trials of unique and low-cost ‘PRIME’ road markings were conducted at 22 sites on Scotland’s trunk road network. With 32,213 motorcycles analysed (the largest investigation of its kind), PRIMEs produced significant positive behavioural changes in speed, road position and braking, supporting Scotland’s ‘Road Safety Framework to 2030’ and the ‘Safe System’ approach to road safety. There was no evidence of any negative rider behaviour or injury collisions at any collision cluster sites used in the trials