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Virginia Study Shows Non-traditional Dynamic Message Sign Messages that Utilize Word Play and Rhymes Increase Cognitive Attention by Nearly 65 Percent.

This study provides empirical evidence of effectiveness for non-traditional safety messages compared to other messages, as seen below:
  • Non-traditional safety…
04/27/2021
Taxonomy: Dynamic Message Signs

In Minneapolis, implementation of a queue warning system resulted in 54 percent decrease in near-crashes and 22 percent decrease in crashes along segment of interstate.

RESULTS
  • Prior to installation, based on 2013 data, there were 11.9 crashes per million vehicle miles of travel (MVMT) and 111.8 near-crashes per MVMT.
  • In the three months of…
12/21/2018
Taxonomy: Dynamic Message Signs

Truck-mounted radar speed signs were effective in reducing traffic speeds by 5 to 23 percent versus reductions of 4 to 8 percent in work zones without them.

MethodologyThe RSS was installed on an Oregon Department of Transportation (ODOT) maintenance truck, a vehicle moving along at a low speed (5-10 mi/h) behind maintenance equipment to warn drivers to…
08/28/2017
Taxonomy: Dynamic Message Signs, Work Zone Management, Dynamic Message Signs

A traveler information system for informing visitors to the Grand Canyon National Park of the availability of a shuttle for car-free travel to the Canyon View Information Plaza added 368 shuttle riders per day, an increase of transit mode share by 45

METHODOLOGYAn independent evaluation of the pilot program evaluated the extent to which the presence of the traveler information signs (the PDMS and HAR) influenced shuttle ridership. To estimate…
04/08/2011
Taxonomy: Dynamic Message Signs, Highway Advisory Radio, Radio, Travel Services

In North Carolina, Smart Work Zone systems increased alternate route usage by 10 to 15 percent when specific delay and alternate route information was posted on roadside dynamic message signs.

RESULTSUsing the portable and hand-held cameras at the work zone, traffic volumes were counted during periods of time when different sign messages were displayed. The evaluation of this data…
04/29/2008
Taxonomy: Dynamic Message Signs, Temporary Traffic Management

In North Carolina, work zone construction staff observed a dramatic reduction in queue frequency and length when using a smart work zone traveler information system.

Highlighted results are shown below:Real-time traffic and alternate route information at work zones.In May 2002, the North Carolina Department of Transportation (NCDOT) deployed a smart work zone…
03/30/2007
Taxonomy: Dynamic Message Signs, Temporary Traffic Management

In North Carolina, a work zone equipped with smart work zone traveler information systems observed fewer crashes compared to other work zones without the technology.

Highlighted results are shown below: Real-time traffic and alternate route information at work zones. In May 2002, the North Carolina Department of Transportation (NCDOT) deployed a smart work…
03/30/2007
Taxonomy: Dynamic Message Signs, Internet / Wireless / Phone, Temporary Incident Management, Temporary Traffic Management, Service Patrols, Imaging / Video

Ninety-seven (97) percent of the motoring public found that predicted travel time information was useful when posted at a work zone on I-75 near Dayton, Ohio.

03/30/2007
Taxonomy: Dynamic Message Signs, Temporary Traffic Management

An automated work zone information system deployed near Los Angeles effectively diverted traffic to alternate routes during periods of congestion.

Researchers used traffic flow data and a driver survey to assess the effectiveness of the AWIS. For weekend and holiday periods when congestion was expected, traffic volumes and diversion rates were…
03/29/2007
Taxonomy: Dynamic Message Signs, Temporary Traffic Management

In Los Angeles, a survey of motorists who experienced an automated work zone information system found that 78 percent of respondents changed their route based on the information provided.

To assess customer satisfaction, a postcard-based survey was designed to obtain driver comments on the work zone information system. At two off-ramps, Caltrans staff and California Highway Patrol…
03/29/2007
Taxonomy: Dynamic Message Signs, Temporary Traffic Management
ITS Deployment Evaluation

INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE

1200 New Jersey Avenue, NE
Washington, DC 20590

1-800-853-1351

its.dot.gov

Focus Areas

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Deployment Statistics

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Taxonomy Description (PDF)

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Topics

Arterial Management

Freeway Management

Roadway Operations & Maintenance

Crash Prevention & Safety

Road Weather Management

Transportation Management Center

Alternative Fuels

Traffic Incident Management

Transit Management

Emergency Management

Traveler Information

Driver Assistance

Information Management

Commercial Vehicle Operations

Intermodal Freight

Electronic Payments & Pricing

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