roadline

Roadline refers to the painted lines and markings on pavement that regulate traffic, delineate lanes, and convey information to drivers, cyclists, and pedestrians. Although not a formal term in every jurisdiction, it is commonly used to describe the visible cues on road surfaces. Roadlines are designed for clarity in daylight and at night and often use reflective materials for durability and visibility.

Types and meanings: Centerlines separate opposing traffic and can be solid, broken, or varied within a road. Lane lines divide traffic within the same direction. Edge lines mark the boundary between roadway and shoulder. Additional markings include stop lines, turn arrows, and lane-use symbols such as bus or bicycle lanes. Colors and rules vary by country: white lines are common for lanes and edges in many regions; yellow lines often separate opposing flows or indicate no passing. Solid versus broken lines indicate whether crossing is allowed.

Maintenance and standards: Roadlines are defined by national or regional standards and are repainted or refreshed as needed. Worn or faded lines reduce visibility and can contribute to misalignment and crashes. Materials include conventional paint with reflective beads or thermoplastic, and retroreflectivity improves nighttime detection.

Impact and enforcement: Roadlines provide a basic framework for traffic organization and safety. They guide lane discipline, turning decisions, and intersection behavior, and are reinforced by signs and road design. In many regions, crossing certain lines carries penalties, and drivers must adhere to local conventions when traveling between areas with different roadline rules.