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Product ID: 385911EAU
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Current Issues and Complexities With Nighttime Work Zones: Safety, Mobility and Construction Issues

OnDemand Webinar (86 minutes)

Current highway maintenance and reconstruction methods are increasingly moving to nighttime activities. The main reason this trend is increasing is because in many major metropolitan areas the only time when lane reductions can take place without resulting in delay is during the nighttime hours. However, there are many complications to nighttime work that can reduce driver and worker effectiveness, including: visibility of construction workers during nighttime hours, visibility of specialized equipment or construction related vehicles at the job site, controlling vehicle speed and guidance prior to and within the work zone, and providing glare-free illumination without distracting drivers. This OnDemand Webinar will help those responsible for designing and managing nighttime work zone construction and maintenance activities, to determine when these work zones are appropriate for use, and to understand the issues of work zone traffic control, lighting in the work zone, and motorist and worker safety. A review of work zone best practices will also be presented.

Learning Objectives:

  • You will be able to discuss the advantages of implementing a nighttime work zone.
  • You will be able to review research highlights of nighttime work zones and recommended best practices.
  • You will be able to describe references and specific recommended websites for practitioners.
  • You will be able to identify the health, safety and welfare aspects of the issues with nighttime work zones.


Dr. Steven D. Schrock, The University of Kansas


Nighttime Work Zones

• Definition, When Are Nighttime Work Zones Used, Common Use of Traffic Control, and State of Practice

• Advantages of Implementing a Nighttime Work Zone

• Concerns Identified When Nighttime Work Zones Are Used to Both the Driver, Environment and Contractors

Nighttime Work Zone Crash and Fatality Report

• Identified Research Studies That Have Reported Crashes in Work Zones

• Nighttime Crashes Are Compared to Daytime Crashes, Causes of Nighttime Crashes and Temporal Trends

References and Specific Recommended Websites for Practitioners

• MUTCD, NCHRP 475, 475, 498, 627

• FHWA Report SA-03-026

• State Local Technical Assistance Programs (LTAP)

Research Highlights of Nighttime Work Zones and Recommended Best Practices

• Visibility of Construction Workers During Nighttime Hours

• Visibility of Specialized Equipment or Construction Related Vehicles at the Job Site

• Controlling Vehicle Speed and Guidance Prior-To and Within the Work Zone

- Positive Guidance and Crash Cushions

- Type and Spacing of Delination and Channelization Devices

- Retroreflectivity of Devices

- Pavement Markings

- Advance Warning

• Providing Glare-Free Illumination Without Distracting Drivers

- NCHRP 498

- Fixed, Semipermanent, Balloon Lighting

• Guidance for Developing Traffic Management or Nighttime Work Zone Plan

- Expectations of the On-Site Crew in Terms of Safety Awareness

Concluding Remarks