Statewide Implementation of Salt Stockpile Inventory Using LiDAR Measurements: Case Study
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Published:2024-01-20
Issue:2
Volume:16
Page:410
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ISSN:2072-4292
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Container-title:Remote Sensing
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language:en
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Short-container-title:Remote Sensing
Author:
Mahlberg Justin Anthony1ORCID, Malackowski Haydn1, Joseph Mina1, Koshan Yerassyl1, Manish Raja1ORCID, DeLoach Zach2, Habib Ayman1ORCID, Bullock Darcy M.1ORCID
Affiliation:
1. Joint Transportation Research Program, Purdue University, West Lafayette, IN 47907, USA 2. Indiana Department of Transportation, 100 N Senate Ave, Marion County, Indianapolis, IN 46204, USA
Abstract
The state of Indiana maintains approximately 120 salt storage facilities strategically distributed across the state for winter operations. In April 2023, those facilities contained approximately 217,000 tons of salt with an estimated value of USD 21 million. Accurate inventories at each facility during the winter season are important for scheduling re-supply so the facilities do not run out of salt. Inventories are also important at the end of the season for restocking to provide balanced inventories. This paper describes the implementation of a portable pole-mounted LiDAR system to measure salt stockpile inventory at 120 salt storage facilities in Indiana. Using two INDOT staff members, the end-of-season inventory took 9 working days, with volumetric inventories provided within 24 h of data collection. To provide an independent evaluation of the methodologies, the Hovermap ST backpack was used at selected facilities to provide control volumes. This system has a range of 100 m and an accuracy of ±3 cm, which reduces the occlusion to less than 8%. The pre-season facility capacity ranged from 0% to 100%, with an average of 66% full across all facilities. The post-season facility percentage ranged from 3% to 100%, with an average of 70% full. In addition, permanent roof-mounted LiDAR systems were deployed at two facilities to evaluate the effectiveness of monitoring salt stockpile inventories during winter operation activities. Plans are now underway to install fixed LiDAR systems at 15 additional facilities for the 2023–2024 winter season.
Funder
Joint Transportation Research Program
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