If you see segregation during paving, what is recommended?

• A. Set up paint or string lines to assist operators in maintaining straight lines
• B. Stop the operation permanently
• C. Replace the paver
• D. Increase roller speed

Answer: (A)

When segregation shows up during paving, a practical, immediate fix is to give the operator a clear visual guide to keep the mat uniform and straight. Setting up paint lines or string lines provides a visible reference to maintain a straight path and consistent width as the paver moves. This helps ensure the mat is laid evenly, which reduces the chances of uneven aggregate distribution and the formation of segregated areas at joints or edges.

Stopping the operation or replacing the paver are excessive responses to this issue, and simply increasing roller speed can worsen compaction or introduce new irregularities. The guiding lines directly support consistent placement and alignment, which is the first step to controlling segregation in real-time.