NCHRP Report 627:

Traffic Safety Evaluation of Nighttime and Daytime Work Zones

Status: Not for Sale

Size: 89 pages, 8.5 x 11

Publication Year:2008

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To purchase a copy of this report, please visit www.trb.org.

Authors:
Melisa D Finley; Gerald L Ullman; James E Bryden; Raghavan Srinivasan; Forrest M Council; Transportation Research Board
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TRB's National Cooperative Highway Research Program (NCHRP) Report 627: Traffic Safety Evaluation of Nighttime and Daytime Work Zones explores the crash rates for nighttime and daytime work zones and examines management practices that promote safety and mobility in work zones. ...
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Table of Contents
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Front Matter	i-x
Summary	1-3	(skim)
Work Zone Effects on Traffic Safety	4-4	(skim)
Nighttime versus Daytime Work Zone Crashes	5-5	(skim)
Implications for This Study	6-6	(skim)
Study Overview	7-7	(skim)
Data Reduction and Analysis	8-8	(skim)
Work Zone Traffic Crash Analysis	9-11	(skim)
Work Zone Construction Accident Analysis	12-12	(skim)
Summary of Findings	13-13	(skim)
Study Methodology	14-14	(skim)
Data Collection	15-17	(skim)
Data Analysis	18-18	(skim)
Increases in Traffic Crashes Occurring during Nighttime and Daytime Work Activities	19-25	(skim)
Types of Crashes Occurring during Nighttime and Daytime Work	26-29	(skim)
Summary	30-33	(skim)
Chapter 4 - Recommended Management Policies, Procedures, and Practices to Improve Nighttime and Daytime Work Zone Safety	34-34	(skim)
Improvements in Maintenance and Construction Practices	35-36	(skim)
Nighttime Work	37-37	(skim)
Transportation Demand Management Programs to Reduce Traffic Volumes Through Work Zones	38-39	(skim)
Strategies to Improve Work Zone Traffic Control Devices	40-42	(skim)
Strategies to Improve Work Zone Design Practices	43-44	(skim)
Strategies to Improve Driver Compliance with Work Zone Traffic Controls	45-46	(skim)
Strategies to Develop Procedures to Effectively Manage Work Zones	47-47	(skim)
Summary	48-49	(skim)
Categories of Critical Data Elements	50-50	(skim)
MMUCC Guideline-Based Enhancements to State Crash Reports	51-51	(skim)
Selecting a Work Zone Crash Data Source	52-53	(skim)
State Highway Agency-Based Crash Data Collection and Reporting	54-54	(skim)
MMUCC Guideline Data Elements and Attributes - 2003 Edition	55-55	(skim)
Suggested Revisions to MMUCC Guideline Definitions	56-56	(skim)
Inherent Limitations in the MMUCC Guideline	57-58	(skim)
Data Element Considerations of Highway-Agency-Based Crash Reporting Systems	59-60	(skim)
Recommended Work Zone Crash Data Analysis Methods	61-61	(skim)
Summary	62-64	(skim)
Nighttime and Daytime Work Zone Effects on Crashes and Worker Accidents	65-65	(skim)
Work Zone Crash Data Elements, Collection and Storage Techniques, and Analysis Methods	66-66	(skim)
Recommendations	67-67	(skim)
References	68-70	(skim)
Appendixes A, B, C, and F	71-71	(skim)
Appendix D - Suggested Revisions to MMUCC Guideline Definitions	72-73	(skim)
Appendix E - Florida, Louisiana, and Maryland Agency Work Zone Crash Reporting Forms	74-78	(skim)
Abbreviations used without definitions in TRB publications	79-79	(skim)

Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 627: Traffic Safety Evaluation of Nighttime and Daytime Work Zones explores the crash rates for nighttime and daytime work zones and examines management practices that promote safety and mobility in work zones. The report also highlights work-zone crash reporting suggestions designed to help improve the data collected on work zone crashes.

The following appendices to NCHRP Report 627 are available online:
Appendix A: Data Collection, Reduction, and Analysis in California, North Carolina, Ohio, and Washington
Appendix B: EB Crash Analysis
Appendix C: MMUCC Guideline Data Elements
Appendix F: NYSDOT Accident Reporting Program – Data Elements and Attributes

NCHRP Report 627:

Traffic Safety Evaluation of Nighttime and Daytime Work Zones

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