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Which geometric design element is critical for ensuring adequate sight distance?

Practice Questions

Q1
Which geometric design element is critical for ensuring adequate sight distance?
  1. Lane width
  2. Vertical alignment
  3. Shoulder width
  4. Pavement texture

Questions & Step-by-Step Solutions

Which geometric design element is critical for ensuring adequate sight distance?
  • Step 1: Understand what sight distance means. It is the distance a driver can see ahead on the road.
  • Step 2: Learn about vertical alignment. This refers to the up and down curves of the road, like hills and valleys.
  • Step 3: Realize that good vertical alignment helps drivers see far enough ahead to react to obstacles or changes in the road.
  • Step 4: Conclude that vertical alignment is important for safety because it ensures drivers have enough sight distance.
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