Improving Safety in High-Speed Work Zones: A Super 70 Study
Author : Andrew P. Tarko
Publisher : Purdue University Press
Page : 80 pages
File Size : 22,12 MB
Release : 2011-05-15
Category :
ISBN : 9781622600021
Recent Roadway Geometric Design Research for Improved Safety and Operations
Author : Marcus Brewer
Publisher : Transportation Research Board
Page : 90 pages
File Size : 47,40 MB
Release : 2012
Category : Technology & Engineering
ISBN : 0309223598
Book Description
RB’s National Cooperative Highway Research Program (NCHRP) Synthesis 432: Recent Roadway Geometric Design Research for Improved Safety and Operations reviews and summarizes roadway geometric design literature completed and published from 2001 through early 2011, particularly research that identified impacts on safety and operations.
Speed Variation and Safety in Work Zones
Author : John Anthony Gambatese
Publisher :
Page : 368 pages
File Size : 34,22 MB
Release : 2021
Category :
ISBN :
Book Description
In addition to lower speeds, the difference between vehicle speed and the average speed on the roadway has been identified as a factor in roadway crashes. For work zones, the potential for such speed variation from the average speed is magnified. The safety associated with speed variation in work zones affects both motorists driving through the work zone and the workers in the work zone. The overall goal of this research is to develop additional knowledge and practices that can be used to improve driver and worker safety in work zones and, as a result, mobility through work zones. The research focuses on high-speed roadways (e.g., highways and freeways) and typical mobile construction and maintenance operations that occur on such roadways (e.g., paving and re-striping). The research presented in this report involved a review of the archival literature germane to the topic of speed variation (with and without a work zone), the analysis results of speed variation and crash occurrence, and the impacts of selected traffic control interventions on speed variation in work zones in Oregon. The PCMS unit showing alternating messages "MAINTAIN CONSTANT SPEED" and "THRU WORK ZONE" in two phases and placed at the advance warning area was found to effectively reduce speed variation in the work zone. Based on the findings, the researchers recommend use of PCMS units that display custom messages to maintain constant speed for work zone operations on high-speed roadways.
Safety Study
Author : United States. National Transportation Safety Board
Publisher :
Page : 88 pages
File Size : 40,44 MB
Release : 1992
Category : Roads
ISBN :
Book Description
Improving the Safety Performance of Construction Work Zones
Author : Mason Ali
Publisher :
Page : 0 pages
File Size : 50,41 MB
Release : 2021
Category : Road construction industry
ISBN :
Book Description
Hundreds of fatal occupational incidents occur in construction work zones every year. According to the National Work Zone Safety (NWZS), there were 842 fatalities in work zones in the United States in 2019 compared to 757 in 2018. (NWZS 2019). The Manual of Uniform Traffic Devices (MUTCD) provides the minimum requirements for traffic safety, and improvements are always needed. Every work zone is unique based on several elements including, but not limited to, project location, construction type, task duration, and demography. This thesis further researches the safety performance of road work zones. Specifically, the study addresses and includes the following elements: 1. Investigating the work zone fatal incident investigation reports carried out by the Fatality Assessment and Control Evaluation (FACE) Program. 2. Investigating the Southeast Michigan Council of Government (SEMCOG) work zone incident reports. 3. Conducting a field experiment to assess the real influence of utilizing rumble strips on construction work zones. The study further suggests that the causes of work zone incidents were a combination of high-risk motorist behavior, a deficiency in temporary traffic control plans, and an unsuitable TTC setup. To mitigate the risk of fatal incident, motorists must increase attention and reduce speed when they pass work zones. Thus, utilizing new technologies like Temporary Portable Rumble Strips (TPRS) has been suggested to improve the safety of work zones. The field experiment suggests that TPRS could help reduce motorist speed under a specific circumstance and increase motorist awareness.
Strategies on Improving Worker Safety in Work Zones
Author : Roadway Safety Consortium
Publisher :
Page : 7 pages
File Size : 46,21 MB
Release : 2011
Category : Road construction workers
ISBN :
Book Description
Guidelines on Worker Safety Strategies (Subpart K) describes traffic control measures that can be appropriate in work zones to further improve the safety of highway workers. The document addresses enhanced flagger station set-ups, intrusion alarms, pace or pilot vehicles, and temporary traffic signals.
Highway Safety Literature
Author :
Publisher :
Page : 926 pages
File Size : 48,85 MB
Release : 1979
Category : Highway research
ISBN :
Book Description
Highway Safety Literature
Author :
Publisher :
Page : pages
File Size : 41,87 MB
Release : 1979
Category : Traffic safety
ISBN :
Book Description
Guidelines on Managing Speeds in Work Zones
Author : Roadway Safety Consortium
Publisher :
Page : 8 pages
File Size : 27,89 MB
Release : 2011
Category : Road work zones
ISBN :
Book Description
Guidelines on Managing Speeds in Work Zones summarizes available guidance on setting speed limits and managing speeds in work zones. Many factors impact the decision to reduce the regulatory speed limit in a work zone, implement speed limit management strategies and utilize speed reduction strategies. This guide is intended to aid agencies and highway contractors in understanding these factors and the interactions among them. The document addresses how slower speeds can improve safety, how drivers are told to slow down, when slower speeds are important, changing speeds to match conditions, voluntary speed reductions, law enforcement, other tools, a decision tool for managing speeds, and an example approach to managing speeds in work zones.
Varied Applications of Work Zone Safety Analysis Through the Investigation of Crash Data, Design, and Field Studies
Author : Erica Lee Swansen
Publisher :
Page : 137 pages
File Size : 14,19 MB
Release : 2012
Category : Road work zones
ISBN :
Book Description
Work zone crashes and fatalities have been decreasing since 1994. Yet, according to Fatality Analysis Reporting System, 667 people were killed in highway work zone crashes in 2009. As the United States' infrastructure ages and new roads and highways are constructed less frequently, the need for repairs and alterations to the nation's roadways is continually increasing. This growth ensures that work zones will be a vital piece of design focus in the near future. In order to continue the decreasing trend in work zone crashes, and reduce the still significant number of work zone fatalities, work zones need to continually be examined to identify opportunities for improved safety. This research explored the relationship between work zone related crashes and work zone design and setup. More specifically, existing literature and current standards, compiled with crash report form data in the UMass Safety Data Warehouse and field observations in Massachusetts were integrated to determine the causes and remedies for work zone related crashes. The research examined three critical areas: 1) causation of work zone related crashes in contrast to non-work zone related crashes along with variations of citations as a result of work zone crashes; 2) variations of the work zone definition and the impact on work zone involvement; and 3) analysis of conflict and event studies for small scale work zones to develop a methodology using surrogate measures to identify potential countermeasures leading to improved work zone safety. The results are expected to advance the current state of knowledge with regards to work zone design and setup, resulting in recommended actions for improved work zone analysis and design strategies.
