A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity (2012) / Chapter Skim
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Pages 72-87
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72 Most STAs have adapted work-zone safety standards based on the Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD)
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Safety 73 While 53 worker fatalities in twilight or nighttime highway work zones were caused by traffic for the period 1992 to 2000, 17 worker fatalities were caused exclusively by the construction work for the same period (Bureau of Labor Statistics)
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74 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Nighttime construction lighting should follow standard or special provisions imposed by local governments or by the Occupational Safety and Health Administration (OSHA)
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Safety 75 Higher illumination levels are recommended for activities that require higher levels of discernibility, such as electrical work. A lower illumination level is recommended for activities like excavation.
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76 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Key Take-Away Proper clothing is considered the most important element to ensure worker safety. High-visibility PPE protects workers from potential construction hazards and helps in recognizing workers in decreased light situations.
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Safety 77 ANSI/ISEA 207-2006: American National Standard for High-Visibility Public Safety Vests.
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78 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Several research studies have shown that yellow is the most recognizable color during daytime, but orange is better at dusk and during the nighttime. Tip Blaze orange was found to be the most conspicuous of the retroreflective trim colors (Abraham et al.
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Safety 79 Construction and maintenance workers should be instructed about the distinctive risks and hazards imposed by nighttime construction. Poor visibility, reduced lighting, worker fatigue, and driver drowsiness and substance abuse are all accident risk factors when a project is constructed at night.
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80 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Key Take-Away Toolbox talks are short discussions or presentations by supervisors with their crews. Tip Daily toolbox safety meetings are used to target hazards of tasks and to emphasize activities that will take place during the work period.
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Safety 81 the added demands. All workers on night projects need to be made aware of the special risks inherent in night work, along with the safeguards and procedures to be followed on the project to compensate for these risks (Bryden and Mace 2002b)
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82 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity illustrates an example of a safety training program offered by the National Work Zone Safety Information Clearinghouse. A webinar session at www.workzonesafety.org/video_viewer.php?
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Safety 83 Figure 8.4. FHWA pamphlet of basic Spanish for safety and emergencies.
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84 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Figure 8.5. FHWA Roadway Safety Awareness Program booklet.
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Safety 85 Best Practices for Nighttime Work-Zone Operations Several methods can be used to provide safe nighttime work zones. Work-zone traffic safety can be improved through good engineering and design practices, enforcement of traffic laws and regulations, and agency procedures.
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86 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity Figure 8.7. Differences in nighttime and daytime temporary lane closures (Bryden 2004)
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Safety 87 Tip Flagging should not normally be considered a speed reduction technique for nighttime construction because flaggers are less visible and the risk to their safety is greater at night (Bryden and Mace 2002b)
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