Content that references this location
Before-and-After Study of Freeway Variable Speed Limit Installations Estimated Crash Reductions of 34 Percent in Wyoming and 29 Percent in Georgia.
Methodology
The potential to reduce crashes was assessed by estimating crash modification factors (CMFs) associated with the safety improvement strategy in terms of total, fatal, and injury, and…
Content type
Date Posted
06/16/2022
Taxonomy (ARC-IT)
Variable Speed Limits (TM20)
Passive safety treatments were found to be more reliable and affordable than active safety treatments on two-lane rural roads with dangerous horizontal curves in Virginia.
Findings
In general, the human-factors study found more modest impacts from the new treatments than the observational study. The authors suggest that this is because participants were measured along…
Content type
Date Posted
06/26/2019
Geolocation links
Radar-based dilemma zone protection systems reduced red-light running by up to 80 percent at test locations in Virginia.
Findings
Radar-based systems were found to provide the most protection because it can continuously monitor vehicle speeds and act accordingly. Before and after comparisons of red-light running…
Content type
Date Posted
04/18/2018
Taxonomy (ARC-IT)
Traffic Signal Control (TM03),
Integrated Decision Support and Demand Management (TM09)
Geolocation links
Intersection collision avoidance systems deployed at intersections with high crash frequencies or high rates of severe injury are projected to recoup initial costs within one year, through a reduction in crashes.
Content type
Date Posted
06/03/2008
In Virginia, ADMS stakeholders (i.e., VDOT administrators, planners, and researchers) were pleased with the ability of the system to provide a variety of data, but wanted more information on traffic counts, turning movements, and work zones, as well
RESULTS Highlights from stakeholder interviews Overall, users were pleased with the ability to obtain a variety of data; but they wanted more data on traffic counts, turning movements, and work zones…
Content type
Date Posted
04/11/2008
Taxonomy (ARC-IT)
ITS Data Warehouse (DM01),
Data Distribution (SU03),
Map Management (SU04),
Object Registration and Discovery (SU06),
Management of Electronic Traffic Regulations (METR) (VS17)
Geolocation links
Speed activated dynamic message signs (DMS) with warning messages reduced speeding vehicles by 50 percent or more in Virginia work zones.
Notes:See also: Garber, N.J., and S. Srinivasan. Effectiveness of Changeable Message Signs in Controlling Vehicle Speeds in Work Zones: Phase II, Virginia Transportation Research Council.…
Content type
Date Posted
02/02/2007
Taxonomy (ARC-IT)
Speed Warning and Enforcement (TM17),
Work Zone Management (MC06),
Traffic Incident Management System (TM08),
Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
Customer satisfaction with 511 ranged from 68 to 92 percent in four deployments studied.
Notes:
See also:
Swan, Nicole, et al. 511 Virginia Evaluation, Report sponsored by VDOT, January 2004.
Final Report Model Deployment of a Regional, Multi-Modal 511 Traveler Information System,…
Content type
Date Posted
01/19/2007
Taxonomy (ARC-IT)
Personalized Traveler Information (TI02)
In Virginia, an evaluation of 511 services indicated 90 percent of callers found the service useful, and nearly half adjusted their travel plans based on the information provided.
Content type
Date Posted
09/28/2004
Taxonomy (ARC-IT)
Personalized Traveler Information (TI02)
Geolocation links
In Kentucky and Virginia, state overhead costs required to maintain motor carrier accounts were estimated to decrease 35 percent for each motor carrier participating in electronic credentialing.
In-person interviews were conducted to obtain cost data from motor carriers and state agencies participating in the International Registration Plan (IRP) and International Fuel Task Agreement (IFTA…
Content type
Date Posted
08/14/2002
Taxonomy (ARC-IT)
CV Administrative Processes (CVO04),
Intelligent Access Program (CVO17),
Intelligent Access Program - Weight Monitoring (CVO18)
Geolocation links
In Virginia, the deployment of a freeway service patrols was positively received by the public; Virginia DOT received hundreds of “thank you” letters.
Content type
Date Posted
01/01/2000
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08)
Geolocation links
Virginia DOT set aside $300,000 annually to maintain and upgrade ADMS Virginia; maintaining the ADMS was estimated to require 1 to 1.5 full time equivalent positions.
In 2002, the Federal Highway Administration awarded a field operational test to the Virginia DOT to use archived data to effect transportation operations and management decisions. The scope of the…
Content type
Made Public Date
04/11/2008
Taxonomy (ARC-IT)
ITS Data Warehouse (DM01),
Data Distribution (SU03),
Map Management (SU04),
Object Registration and Discovery (SU06),
Management of Electronic Traffic Regulations (METR) (VS17)
Geolocation links
From the 511 Deployment Coalition case study: total costs (to design, implement, and operate for one year) averaged $2.5 million among six statewide systems and $1.8 million among three metropolitan systems.
Since the initial launch of 511 in 2001, numerous statewide and metropolitan traveler information systems have come on-line. In May 2004, the 511 Deployment Coalition began a cost analysis activity.…
Content type
Made Public Date
05/16/2007
Taxonomy (ARC-IT)
Roadway Automated Treatment (MC03),
Personalized Traveler Information (TI02),
Weather Information Processing and Distribution (WX02),
Spot Weather Impact Warning (WX03),
Transit Traveler Information (PT08),
Transit Pedestrian Indication (PT11),
Personnel Device Maintenance (SU13),
Trip Planning and Payment (TI04)
Geolocation links
Miami, Florida, United States | Ft. Lauderdale, Florida, United States | Orlando, Florida, United States | Statewide, Arizona, United States | Statewide, North Carolina, United States | Statewide, Utah, United States | Statewide, Kansas, United States | Statewide, Virginia, United States | Statewide, Washington, United States
State agencies should facilitate the spread and usage of data for commercial vehicle operations, suggests VDOT analysis.
The report concluded with the following recommendations. It also highlighted possible avenues through which the recommendations might be most efficiently implemented.
VDOT Traffic Engineering…
Content type
Date Posted
11/26/2019
Taxonomy (ARC-IT)
Freight-Specific Dynamic Travel Planning (CVO09),
Railroad Operations Coordination (TM15),
Drawbridge Management (TM18)
Geolocation links
INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE
1200 New Jersey Avenue, SE
Washington, DC 20590
