ASTM D4280-03

ASTM D4280-03

ASTM D4280 is an ASTM International standard specifying performance criteria for nighttime lane marking and defining raised markers that are extended life type, nonplowable, and retroreflective on the surface of pavements. In the fields of road safety, highway infrastructure, and traffic management, it is common practice to use it, as it guarantees a reliable visibility and structural integrity of the pavement markers in real-world traffic and environmental situations. Presto's precision compression and flexural strength testing instruments help manufacturers verify pavement marker performance in full compliance with ASTM D4280 requirements under controlled laboratory conditions.

Significance

In addition to the importance of aesthetic features, ASTM D4280 is an important standard for road safety because it sets measurable performance specifications to which pavement markers must adhere prior to being used on public roadways. Testing of pavement markers shall be conducted to investigate conformance to construction, performance (retroreflectivity), and physical property requirements of flexural strength, compressive strength, abrasion resistance, coefficient of luminous intensity, color, resistance to cracking of lenses, lens impact strength, and temperature cycling strength. All of these multi-parameter evaluations guarantee that markers stay strong and optically functional over their long service life and thereby facilitate safe nighttime driving.

Scope

ASTM D4280 applies to nonplowable, retroreflectorized raised pavement markers used to highlight and depict lanes at night, and values in inch-pound units are considered the standard, and SI unit equivalences are provided for information only. The specification covers construction, optical performance, and mechanical property testing for extended-life markers placed in the road surface. It is applicable to manufacturers of pavement markers, highway agencies, and quality inspection bodies needing standard clear definitions of pavement marker production, procurement reporting and verification, and compliance verification for the transportation industry.