Ask ten people how often road markings should be repainted and most will reach for a number of years. The honest answer is that markings are repainted when their measured performance, retroreflectivity, skid resistance and daylight visibility, falls below threshold, and how fast that happens depends on three variables: traffic volume, surface type and weather exposure.
On a busy distributor or motorway approach, a typical repainting cycle runs at 18–24 months. A quiet residential estate road may hold a legible line for five years or more. Thermoplastic on sound asphalt outperforms paint roughly three to one, which is why material choice at installation matters more than repainting frequency.
What UK regulations apply?
Road markings in the UK are governed by the Traffic Signs Regulations and General Directions (TSRGD), with layout guidance in the Traffic Signs Manual and the Manual for Streets. These documents control which markings may be used, their colours, dimensions and positioning. Performance, how the marking behaves once down, is specified through BS EN 1436, which classes materials by retroreflectivity, luminance and skid resistance.
Responsibility for keeping markings legible sits with the local council or highways authority. Where faded markings contribute to an accident, that authority can face legal action, which is why inspection-led maintenance, rather than calendar-led repainting, is the defensible approach.
The inspection-led approach we recommend
On our term maintenance contracts we grade every marking annually on a simple photographic schedule: wear percentage, night visibility and skid performance. Sections dropping below threshold go onto the next night-possession programme. Clients get a defensible audit trail and spend only where the road actually needs it, and busy roads get attention far sooner than any fixed cycle would deliver.
