Location Name
Northern Virginia
State
Country
Geo Type
Latitude
38.83
Longitude
-77.10
Content that references this location
Express Toll Lanes in Virginia Reduce Travel Time by Up To 36.1 Percent, According to Simulation Study.
METHODOLOGY
The changes in vehicle occupancy, mode split, and departure time among travelers were taken into consideration using tolls based on locally collected data from May 2018. The simulation…
Content type
Date Posted
12/22/2021
Taxonomy (ARC-IT)
Road Use Charging (TM11)
Geolocation links
Simulation shows V2I applications that use real-time traffic data to recommend merge maneuvers can increase throughput 18 to 22 percent compared to existing systems that use message displays on overhead gantries.
FINDINGS
The proposed application was able to provide more efficient and cooperative merging when needed. The CAV enabled LCS application consistently outperformed the traditional LCS application…
Content type
Date Posted
10/17/2019
Taxonomy (ARC-IT)
Intermittent Bus Lanes (PT10),
Regional Traffic Management (TM07),
Integrated Decision Support and Demand Management (TM09),
Restricted Lane Warnings (VS10)
Geolocation links
A variable speed limit system used to regulate traffic flow through work zones on a 7.5 mile section of I-495 saved motorists approximately 267 vehicle-hours of delay each day.
A simulation model (VISSIM) was used to evaluate system impacts based on traffic volume data provided by the VDOT Traffic Monitoring System. Several MOEs were evaluated including travel time, speed,…
Content type
Date Posted
01/02/2013
Geolocation links
Field data collected over the last two decades show variable speed limit (VSL) systems can reduce crash potential by 8 to 30 percent.
FINDINGS
The data below excerpted from Table-1 of the source report highlights findings from the literature search.
Type of Test
Location
Major Findings
Field…
Content type
Date Posted
12/07/2012
Taxonomy (ARC-IT)
Incident Scene Safety Monitoring (PS07),
In-Vehicle Signage (TI07),
Dynamic Roadway Warning (TM12),
Autonomous Vehicle Safety Systems (VS01),
Reduced Speed Zone Warning / Lane Closure (VS09),
Variable Speed Limits (TM20)
Geolocation links
Northern Virginia's freeway safety service patrol (SSP) had an estimated annual savings of $6.49 million in motorist delay and fuel consumption resulting in a benefit-cost ratio of 5.4:1.
METHODOLOGYA Return on Investment (ROI) study of the NOVA SSP computed the average durations for SSP-assist incidents to those without SSP-assist (state police assist only). The study compared…
Content type
Date Posted
05/06/2011
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08)
Geolocation links
The average duration of incidents assisted by the Northern Virginia (NOVA) Safety Service Patrol (SSP) was 17.3 percent shorter than the duration for matching incidents without NOVA SSP assistance.
METHODOLOGYAn evaluation of the NOVA SSP examined the duration of traffic incidents that had received assistance from NOVA SSP as well as similar incidents without SSP assistance on non-SSP routes (…
Content type
Date Posted
05/06/2011
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08)
Geolocation links
The Virginia DOT implemented and operated a variable speed limit (VSL) system for two years on a 7.5 mile section of I-495 for $3.2 million (2008).
In July 2008, a variable speed limit (VSL) system was implemented on a 7.5 mile section of I-495 (the Capital Beltway) in Virginia between the Springfield Interchange and the Woodrow Wilson Bridge. A…
Content type
Made Public Date
12/07/2012
Geolocation links
The Northern Virginia Safety Service Patrol (NOVA SSP) had a total annual SSP operating cost of $1,193,511 in FY03 to FY04.
The Northern Virginia (NOVA) Safety Service Patrol (SSP) requested a Return on Investment (ROI) study after a significant reduction in its budget resulted in a dimished ability to clear incidents.…
Content type
Made Public Date
05/04/2011
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08)
Geolocation links
Open-Source Scenario Planning Tools Can Provide Substantial Flexibility in Terms of the Types of Scenarios Considered At the Expense of Providing Precise Impacts.
The first task involved developing the base and scenario input files requiring 51 current and forecast year input files. The files spanned across areas of demographics, economy, transportation supply…
Content type
Date Posted
09/27/2022
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09)
Geolocation links
INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE
1200 New Jersey Avenue, SE
Washington, DC 20590
