Evaluation of automated flagger assistance devices : interim report.

Brown, Henry; Sun, Carlos; Zhang, Siyang; Qing, Zhu

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Evaluation of automated flagger assistance devices : interim report.

2017-08-01
By Brown, Henry ; Sun, Carlos ; Zhang, Siyang

File Language:

English

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Creators:

Brown, Henry ; Sun, Carlos ; Zhang, Siyang ; Qing, Zhu
Corporate Creators:

University of Missouri--Columbia. Department of Civil and Environmental Engineering
Corporate Contributors:

Missouri. Department of Transportation. Construction and Materials Division ; United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

cmr 17-010
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Interim Report
Corporate Publisher:

Missouri. Department of Transportation
Abstract:

Flagger safety is an important issue in work zones due to the proximity of the flagger to traffic. Some strategies for improving ; flagger safety include slowing down approaching vehicles or removing flaggers from the immediate vicinity of traffic. The ; Automated Flagger Assistance Device (AFAD) is a system that can potentially accomplish both of the aforementioned strategies. ; In order to validate the effectiveness of AFADs in highway work zones, field testing was performed using an AFAD with a ; Changeable Message Sign (CMS) on a 2-lane work zone in Missouri. The field study found that AFADs helped to lower ; approach speeds and encouraged vehicles to stop farther behind the AFAD than a traditional flagger. In addition, a driver ; intercept survey found that the AFAD was viewed favorably by the general public. These field results found that AFADs are ; more effective than human flaggers, and drivers prefer AFADs over human flaggers. ; Author ORCID information: ; Carlos Sun - https://orcid.org/0000-0002-8857-9648
Format:

PDF
Funding:

MoDOT project #TR201717
Download URL:

https://rosap.ntl.bts.gov/view/dot/32620/dot_32620_DS1.pdf
File Type:

[PDF - 2.13 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:a0885bd7a6e9ad93566ca75d6f95b9fb0d9c4b9e8dc51b1bc6c035147d53f06e04dc9f0c8223135720eadc789c1619e496b769a37fc0b25490318c34e0c110f2

File Language:

English

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