Sample interview questions: Have you ever conducted airfield pavement marking retroreflectivity measurements for airport runways? If so, please provide details.
Sample answer:
Yes, as an Airport Engineer specializing in civil engineering, I have conducted airfield pavement marking retroreflectivity measurements for airport runways. These measurements are crucial for ensuring the safety and efficiency of airport operations.
In order to conduct these measurements, I utilize specialized equipment such as retroreflectometers. These devices measure the retroreflective properties of pavement markings, which determine their visibility and reflectivity to pilots during landing, takeoff, and taxiing operations. By assessing the retroreflectivity of pavement markings, we can ensure that they meet the required standards and are clearly visible to pilots under various weather conditions, including low light and adverse weather.
During the retroreflectivity measurements, I follow established guidelines and standards, such as those set by the Federal Aviation Administration (FAA) and International Civil Aviation Organization (ICAO). These guidelines outline the specific requirements for pavement marking retroreflectivity, including minimum values that must be met.
The measurements are typically conducted during nighttime hours when the ambient light is lower, as this allows for a more accurate assessment of the pavement markings’ retroreflective properties. I use a retroreflectometer to measure the luminance of the markings, which provides an indication of their retr… Read full answer