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Questions and Answers
What is the primary function of Light Detection and Ranging (LIDAR)?
What type of laser is required for topographic LIDAR surveys?
How does LIDAR measure the distance traveled?
What is the primary goal of the LIDAR project at Northern Arizona University?
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What is the role of Quantum Spatial in the LIDAR project?
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What will be the benefit of the LIDAR project to wheelchair users?
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What is the primary purpose of the first phase of the map?
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What is the potential benefit of the map in terms of accessibility?
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How will advancements in surveying technology impact human surveyors?
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What is the relationship between the first and second versions of the map?
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What is the potential impact of the map on error reduction?
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Study Notes
LIDAR Technology
- LIDAR (Light Detection and Ranging) uses light to measure distances and can function underwater and on land.
- Topographic LIDAR surveys use a near-infrared laser and require a setup including a laser, a scanner, and a platform-mounted GPS receiver.
- The laser points at a target's surface, causing a reflection of light that is recorded by sensors to measure the distance traveled.
NAU Accessibility Mapping Project
- A project at Northern Arizona University (NAU) uses LIDAR to improve surveying for an accessibility map of the campus.
- The map will help determine the best routes for wheelchair users or people who want to avoid stairs.
- The project relies on LIDAR, laser scanning, and drone-collected data.
- The first phase will provide path-of-travel and slope specifics to viewers.
- The second phase will create a version of the map to complement assistive technology tools, such as screen readers.
Impact on Surveying and Construction
- The detailed map can guide future construction projects, revealing where accessibility efforts fall short.
- It can ensure that all new buildings have accessibility requirements addressed from the start.
- The evolution of surveying technologies is altering the ways surveyors work, reducing errors and repetitive tasks.
- These improvements increase surveyor productivity and client satisfaction.
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Description
Learn about Light Detection and Ranging (LIDAR) technology, its functionality, and applications in topographic surveys. Understand how LIDAR uses light to measure distances and its capabilities in various environments.
