Design of a preliminary error impact analysis model for spatial safety assessment of earthmoving operations

Abstract

Regardless of technology benefits, safety planners still face difficulties explaining errors related to the use of different technologies and evaluating how the errors impact the performance of safety decision making. This paper presents a preliminary error impact analysis testbed to model object identification and tracking errors caused by image-based devices and algorithms and to analyze the impact of the errors for spatial safety assessment of earthmoving and surface mining activities. More specifically, this research designed a testbed to model workspaces for earthmoving operations, to simulate safety-related violations, and to apply different object identification and tracking errors on the data collected and processed for spatial safety assessment. Three different cases were analyzed based on actual earthmoving operations conducted at a limestone quarry. Using the testbed, the impacts of the errors were investigated for the safety planning purpose. ► This manuscript presents an error impact analysis testbed. ► It models object identification and tracking errors of devices and algorithms. ► The testbed was used to model three different earthmoving operations. ► It detected speed limit, dangerous access, and close proximity violations. ► Interviews and case studies were used for validation.