Work zone intrusion alert technologies : assessment and practical guidance : final report.
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2017-06-01
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Edition:Final report
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Abstract:A work zone intrusion alert technology is a type of safety system that is used in a roadway work zone to alert
field workers and secure time for them to escape when errant vehicles intrude into the work zone. Although
such technologies have potential to significantly improve the overall safety of construction work zones,
previous studies reported mixed findings, resulting in limited application of intrusion alert technologies. In
response, the primary goal of this research study is to scientifically assess the effectiveness of currently
available work zone intrusion alert technologies, and to provide recommendations for use of the technologies
in future ODOT construction and maintenance work zones. To fulfill this goal, the research gathered
information about work zone intrusion alert technologies, gained experiential input and advice from ODOT
staff and industry practitioners, and tested technologies under controlled conditions and in active work zones.
While sample sizes were limited, the findings from the study indicate that aspects of intrusion alarms via
visual, audio, and haptic means can be effective warning mechanisms in a work zone. To improve the
potential impacts of these technologies, this report identifies recommended minimum standards for each of the
aforementioned means of alert. Implementation of the research results is expected to assist ODOT with
enhancing the safety of motorists and workers in construction work zones on high-speed roadways.
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Main Document Checksum:urn:sha-512:b3cf434a282001d7ef6e2f947aa6719171f7291aba5ab4f74ddc831f7f633677a97731c5f6935c14fdd75dfcfe1232f8b3c430d4f95c3714bd0e02c59f615b2f
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