Work Zone Speed Management (2015) / Chapter Skim
Currently Skimming:
Pages 1-6
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 1... ...
WORK ZONE SPEED MANAGEMENT Highway work zone safety is of paramount importance to state departments of transportation (DOTs) and other transportation agencies.
|
From page 2... ...
2 years 2003 through 2010, an average of 19 highway workers were killed per year by traffic in U.S. work zones.
|
From page 3... ...
3 • Buffer area and activity area treatments (such as automated enforcement using the average speed method, reduced lane width, or pace vehicles) help ensure that drivers continue their speed reduction throughout the work zone.
|
From page 4... ...
4 State DOTs and their partner law enforcement agencies apply a wide range of policing philosophies and methods for work zone speed enforcement, which are addressed in detail in NCHRP Report 746: Traffic Enforcement Strategies for Work Zones. In some states, the view is that the police should be actively patrolling the work zone and issuing as many citations as possible.
|
From page 5... ...
5 Field studies suggest that drivers typically reduce their speeds a little at work zones, but often not enough to achieve compliance with work zone speed limits: • In a 1990 survey of drivers at a rural freeway work zone in central Illinois, 79% of respondents said the posted 45 mph speed limit was about right, but more than a third admitted to speeding through the work zone. • A 1999 study found an average decrease in mean speeds of 5.1 mph in work zones where the posted speed limit remained unchanged from the ordinary limit.
|
From page 6... ...
6 Weave" to reduce speeds as traffic approaches work zones on lower-volume freeways. Use of this technique is less common in other states.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.