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    Cost and quality are relatable. In fact, we often derive an item's quality directly from cost. Quality is a grade, an evaluation of how we perceive an item. In the aviation industry decisions are made around the clock based on cost and quality. The industry is filled with "low-bidders" getting work because cost is often the primary directive. As you sow so shall you reap; the cost of quality may lead you to a surplus.

    Airfield markings are unique in that it is difficult for the untrained eye to assess what constitutes a quality marking from that of a poor one. However, before you can qualitatively measure them, expectations must be defined about their durability, performance, etc. How long should a marking last? How does one measure its performance? These questions have answers.

    Sightline recently revisited a case study that we have been monitoring for 30 months. Originally an airport was having some issues with rust discolored markings. We investigated, and believed the aggregate was leaching a contaminant that would wash over white markings with the rainwater, staining the paint. In response, we devised a solution with the help of a paint manufacturer to modify the then 1952-D specification to prevent the discoloration. The modified paint was applied and Type I (low-index) beads were used. After 30 months we took our retroreflectometer to the site to measure the markings' performance. The 30 month-old markings (centerlines, edgelines, thresholds) are performing better than the standard 1952 with Type I at application!

    There are costs associated with this example from our case study. The cost of the modified paint increased the total project about five cents per square foot. The cost that the airport will save because they don't have to paint for at least another year is close to $750,000. That's quality defined. The cost of quality may be up front, but the return that can be realized is certainly attainable. There are many solutions to a similar puzzle, we can help you pick one out that is suitable.

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