Alternative Technologies for Mitigating the Risk of Injuries and Deaths in Work Zones: Conduct of Research (2022) / Chapter Skim
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Pages 10-19
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10 CHAPTER 2: Research Approach As described in Chapter 1, the research study seeks to fulfill the need for guidance on work zone intrusion mitigation technology usage. This goal was attained by identifying successful applications of existing and emerging technologies to mitigate work zone intrusions (referred to as work zone intrusion technologies, or WZITs henceforth)
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11 Each activity included one or more specific tasks needed to complete the activity. Table 2.1 provides a summary of the primary tasks (T1.1 – T4.3)
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12 type of technology for selected work zone applications. Each research task is described in detail below.
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13 columns 3-5 indicate whether that technology can be used to detect an intrusion or imminent hazard based on the types of entities involved (vehicle, person, or infrastructure)
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14 Table 2.3. Technology readiness levels TRL NASA TRL Descriptions (NASA 2009)
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15 2.2 Survey Development and Deployment for Data Collection (Activity A2) The primary objective of Activity A2 is to generate quantitative information on the types of WZIT used by state DOTs and contractors, the perceived effectiveness of the technologies, and factors that influence successful implementation of WZIT.
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16 consultation with the NCHRP Project Panel. The survey contains multiple sections that collect different information from the respondents.
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17 2.2.3 Survey Data Management and Analysis (Task T2.3) After receipt of the survey responses, the research team performed initial descriptive analyses of the responses within Qualtrics to determine if the appropriate sample quotas have been met.
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18 frequency of usage, applicable project characteristics, and other pertinent information specific to the case study under investigation, are also collected. These data are collected through a multimodal data gathering effort consisting of the following sources and methods: semi-structured interviews of DOT and contractor personnel, review of manufacturer documentation and archival literature, and observation of WZIT implementation.
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19 o Technologies developed to enhance safety in work zones are described in detail. A catalog of WZITs is provided, highlighting their potential applications, effectiveness, and maturity.
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