Latest Benefits Updates

In the Minneapolis/St. Paul, traffic speed data collected at two interstate work zones showed that when portable traffic management systems were deployed, work zone traffic volumes increased 4 to 7 percent during peak periods.
Date Posted: 03/16/2007 | Source Date:
In the Minneapolis/St. Paul, a motorist survey found 61% of drivers who experienced a portable traffic management system at a work zone felt more informed about traffic conditions than at other work zones.
Date Posted: 03/16/2007 | Source Date:
In the Minneapolis/St. Paul area, a portable traffic management system (PTMS) installed at two interstate work zones improved safety by slowing approaching vehicles by 9 mi/hr and reducing speed variability by 70 percent.
Date Posted: 03/16/2007 | Source Date:
Speed display trailers can reduce average vehicle speeds by 5 mi/hr and decrease the number of vehicles traveling at excessive speeds in rural work zones.
Date Posted: 03/14/2007 | Source Date:
During lane closures in the Minneapolis/St. Paul region a dynamic late merge system reduced confusion and aggressive driving, decreased queue lengths, and reduced congestion.
Date Posted: 03/09/2007 | Source Date:
Modeling data indicated that an automated work zone information system deployed on I-5 near Los Angeles contributed to a 4.3 percent increase in diversions and an 81 percent increase in average network speed.
Date Posted: 03/09/2007 | Source Date:
An automated work zone information system (AWIS) deployed near Los Angeles, California, reduced freeway delay by 46 percent.
Date Posted: 03/09/2007 | Source Date:
A dynamic lane merge system deployed in a work zone outside Detroit increased PM peak travel speeds by 15 percent, no change in AM peak speeds.
Date Posted: 03/05/2007 | Source Date:
At a work zone in South Dakota, a speed monitoring and display system reduced the number of speeding passenger vehicles and trucks by as much as 25 and 40 percent respectively.
Date Posted: 03/05/2007 | Source Date:
A dynamic lane merge system deployed outside Detroit was found to be cost-effective based on an analysis of system cost and motorist time and fuel savings.
Date Posted: 03/05/2007 | Source Date:
ITS Deployment Evaluation

1200 New Jersey Avenue, SE
Washington, DC 20590

its.dot.gov

U.S. Department of Transportation Office of the Assistant Secretary for Research and Technology (OST-R)
 
 
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