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Greater adoption of CAV may result in long-term benefits but mid-term fluctuations for costs and congestion, according to predictive model.

Focus on the integration of business processes at the institutional or programmatic level rather than at the operations level.

Enhance traffic flow in a regional, multi-state corridor by using vehicle probes to monitor real-time traffic conditions.

Since 2008, the Vehicle Probe Project (VPP) has been providing data to I-95 Corridor Coalition agencies. These agencies recognize the benefits of the VPP to their respective departments of…
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Date Posted
09/16/2010

Use vehicle probes to monitor traffic cost-effectively, manage incidents and queue ups proactively, reduce delays, and increase traveler satisfaction along a multi-state transportation corridor.

The Vehicle Probe Project (VPP) has been providing data the member agencies since 2008. The agencies have recognized the benefits of VPP data to their respective departments of transportation,…
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Date Posted
09/16/2010

Package road value-pricing strategies with technology upgrades and conduct extensive outreach that involves champions, stakeholders, and the general public.

Implications for planners and managers Plan for extensive outreach activities. An important lesson for project planning is paying heed to the extensive outreach activities associated with all…
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Date Posted
12/15/2009

Use Analysis, Modeling, and Simulation (AMS) to identify gaps, determine constraints, and invest in the best combination of Integrated Corridor Management (ICM) strategies.

Facilitate integration of CVISN by establishing cooperative relationship among stakeholders and promoting incentives to improve mobile communications and enhance enforcement.

To collect qualitative information on lessons learned during the CVISN self-evaluation process, evaluation templates were made available to CVISN managers. Participants provided plain-language…
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Date Posted
10/22/2009

Examine route-specific opportunities and constraints, and assess corridor market potential for transit services prior to implementing BRT running way improvements.

Guidelines for integrating and assessing BRT components were presented in the Practitioner's Guide. BRT systems were found to be dependent on local needs, conditions, attitudes, and resources.…
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Date Posted
10/15/2009

Plan for cellular communications to evolve and transition to new communication technologies every few years.

This lesson focused on the findings of a telephone interview with a Triangle Transit Authority (TTA) staff member involved in the development and operations of a bus AVL system in Raleigh–Durham,…
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Date Posted
09/22/2009

Manage response to a biohazard emergency using Emergency Activation Levels, an Incident Management System, and Emergency Operations Centers.

When a biohazard has affected a community, the emergency response will likely involve the transportation sector because a biohazard could affect the transportation network directly (e.g., the release…
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Date Posted
05/11/2009

Use the U.S. Department of Transportation's Biohazard Operational Concept as a blueprint to guide the development of a biohazard event management plan.

On occasion state DOTs are called upon to manage the transportation network in emergencies, most conspicuously during severe weather conditions. State DOTs are also charged with managing…
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Date Posted
04/27/2009

Employ the use of critical ITS technologies in the emergency management of transportation operations during biohazard incidents.

In response to the events of 9/11, state and local transportation agencies strengthened their efforts to develop emergency plans that address man-made incidents. The release of biohazards by design…
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Date Posted
02/05/2009

Utilize ITS technologies to improve highway efficiency in emergency evacuations with advance notice.

Intelligent Transportation Systems (ITS) improves the efficiency of the transportation network in emergency evacuations by optimizing traffic flow and providing real-time, accurate information to…
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Date Posted
12/04/2008

Use a common Concept of Operations for evacuation operations that clarifies stakeholder roles and defines coordination activities for all operational phases of the evacuation.

Emergency evacuations most frequently occur on a local level and are managed by one jurisdiction. Larger scale evacuations, which occur less frequently, can impact neighboring communities and involve…
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Date Posted
12/04/2008

Utilize transportation tools in communications, traffic control, and monitoring and prediction to maximize the ability of the highway network to support evacuation operations.

Include public and private sector transportation organizations as stakeholders in emergency evacuation operations and involve them in the preparedness and response planning.

The transportation sector has a rich inventory of tools, resources and expertise in traffic management. Noting the significant improvements transportation agencies have made in managing the…
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Date Posted
11/18/2008

Address the technical issues associated with using Voice over Internet Protocol (VoIP) phone systems to access 511 and other N11 services.

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VoIP, also called Internet telephony, is the technology that makes it possible to have a telephone conversation over the Internet or a dedicated (closed) IP network instead of dedicated voice…
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Date Posted
12/17/2007

Follow accepted guidelines to create concise, effective messages to communicate to the public using Dynamic Message Signs (DMS).

The lessons learned discussed below are drawn from the guidance provided by the Changeable Message Sign Operation and Messaging Handbook. The information was obtained from previous CMS message design…
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Date Posted
01/21/2007

Involve both public and private sectors in disseminating emergency management and disaster recovery information

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Distribution of traveler information may take several forms: directly from public agencies, through public-private partnerships, and through the commercial broadcast, internet and other media. In the…
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Date Posted
12/08/2006

Establish and thoroughly document accurate data collection and management procedures with the involvement of traffic managers.

The FHWA Office of Operations Mobility Monitoring Program team gathered archived traffic detector data from more than 20 different agencies. In doing this, the team encountered a wide variety of data…
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Date Posted
07/10/2006

Promote local use of archived data for performance monitoring as a means of improving the interpretation of system performance at the national level.

The FHWA and U.S. Department of Transportation (DOT) are responsible for reporting their performance in meeting agency goals, one of which is related to mobility and highway congestion. Data…
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Date Posted
07/10/2006

Build support for operations and management activities by using data collected and archived to demonstrate data archival benefits.

Public agencies typically struggle with their budgets. As a result, many transportation operations divisions have to justify their expenditures on operations and management activities or risk having…
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Date Posted
07/10/2006

Encourage agencies collecting data to use the collected data to improve their own agency functions.

A vested interest in data collection is one of the best motivators for quality data. Poor data quality can sometimes result when data collectors are physically or institutionally distant from the…
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Date Posted
07/10/2006

Gather information on activities and events that can affect system performance.

Any conditions affecting traffic should be part of performance monitoring. In the past, many public agencies have struggled to collect credible data about transportation system performance. Traffic…
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Date Posted
07/10/2006

Use available datasets that can eventually capture the benefits of improved or ideal data, instead of waiting for a silver bullet dataset.

Public agencies need to make decisions based on limited or less-than-ideal information. Performance monitoring and the associated decisions stemming from transportation system performance data should…
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Date Posted
07/10/2006

Allocate sufficient resources for technology deployment and operator training to improve incident detection and verification.

The faster an incident is detected and verified, the quicker the appropriate response teams can be dispatched to and deployed on the scene. Detecting incidents quickly and accurately leads to reduced…
Content type
Date Posted
06/16/2006

Strike a balance between CMS content and the driver's ability to read at 65 mph when posting AMBER alerts.

AMBER alerts, America’s Missing: Broadcast Emergency Response (AMBER alerts), have been used for the past several years to help find abducted children by asking the public to be on the lookout for a…
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Date Posted
06/06/2006

Identify all transportation, incident management, and emergency response entities and strive to resolve issues with semantics and terminology among different agencies.

In preparation of regional crises, all transportation, incident management, and emergency response personnel should be identified; their roles, responsibilities, and lines of authority should be…
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Date Posted
04/13/2006

Develop a formal ITS data sharing policy for your agency

Transportation agencies typically share data with other public agencies and private companies to improve transportation operations through better interagency coordination and to optimize the use of…
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Date Posted
01/12/2006

Do not count on revenue generation from data sharing to subsidize the operation and maintenance expenses of advanced traveler information systems.

The interviews with 34 public agencies on data sharing revealed that only 11 had sought to generate revenue to provide resources for agency operation. Of these 11, six felt it had been relatively…
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Date Posted
10/26/2005

Anticipate challenges with the ITS technology being tested, including problems with software modification and adaptation of previously developed technology.

The findings from this experience indicate that a project that tests new ITS technology may experience a range of problems because of the very technology being evaluated. The lesson learned from this…
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Date Posted
09/16/2005

Consider cost-saving strategies and long term needs when making communications investments.

Consider cost-saving strategies when making communications investments.   The most common solution found to reduce the cost of incident management system implementation was to reuse existing…
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Date Posted
09/16/2005

Modeling effort finds platooning of light duty vehicles can achieve an optimal fuel savings of 4.5 percent.

FINDINGS Platooning of light duty vehicles can achieve an optimal fuel savings of 4.5 percent over baseline. Platooning of buses can achieve an optimal savings of 15.5 percent and platooning of…
Content type
Date Posted
01/14/2020

Intelligent intersection signal control systems that use connected vehicle data to optimize approach and departure speeds of vehicles equipped with cooperative adaptive cruise control (CACC) systems can reduce fuel consumption by 21.8 percent.

FINDINGS Eco-signal operations use connected vehicle technologies to decrease fuel consumption and decrease greenhouse gasses (GHG) and criteria air pollutant emissions by reducing idling, the…
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Date Posted
02/25/2019

CAVs are expected to decrease congestion up to 50 percent, increasing the effective capacity of urban networks leading to a new equilibrium with more users but with negligibly less congestion than the current system.

Autonomous vehicles that can detect imminent rear-end collisions and quickly accelerate using on-demand power from electric motors can reduce whiplash injuries by 40 to 65 percent.

FINDINGS In general, this study found that autonomously accelerating an electrified lead vehicle can mitigate and prevent rear-end collisions and significantly increase the safety benefits from…
Content type
Date Posted
10/30/2018

Intersections with dilemma zone protection can improve safety by more than 20 percent with only a two percent reduction in efficiency.

FINDINGSThe outcome from balanced objectives show that by sacrificing 2 percent efficiency which increases delay, safety can be improved by 20 percent which lowers overall cost. The difference was…
Content type
Date Posted
12/08/2015

Commercial trucks without speed limiters had a significantly higher crash rate (approximately 200 percent) compared to trucks equipped with speed limiters.

METHODOLOGY The primary safety analysis was focused on the reduction in truck crashes that could have been avoided or mitigated with an active speed limiter installed on the truck. This was the first…
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Date Posted
09/17/2013

Light vehicles that automatically activate in-vehicle alerts, seat belt tensioners, and braking systems can reduce fatalities by 3.7 percent.

METHODOLOGYResearchers obtained crash data from three U.S. DOT database archives (NASS/CDS, Pedestrian Crash-worthiness Data System (PCDS) and FARS) and analyzed these data to identify crash…
Content type
Date Posted
05/09/2013

Navigation systems with eco-routing features can improve fuel economy by 15 percent.

FINDINGS Eco-Driving These applications target individual drivers and interact with transportation management systems, information networks, and traffic control systems to determine vehicle…
Content type
Date Posted
10/03/2012

Use of Low Cost Driving Behavior Management System (DBMS) reduces recorded safety events by 38 to 52 percent.

Findings Carrier A significantly reduced the mean rate of recorded safety-related events per 10,000 vehicle miles traveled (VMT) from baseline to intervention by 38.1 percent, while Carrier B…
Content type
Date Posted
06/24/2011

An integrated system of forward collision warning and adaptive cruise control functions was projected to prevent about 10 percent of all rear-end crashes, and 10 to 20 percent of severe near-crashes.

RESULTSAn independent evaluation of the ACAS was conducted based on data collected from a field operational test (FOT) and from an independent system characterization test. The goals of the…
Content type
Date Posted
10/21/2008

In-vehicle rollover advisory control warning messages are expected to prevent 20 percent of rollover crashes caused by excessive speed in curves, based on driving data collected during a Freightliner FOT.

RESULTSData sources included historical crash data, engineering data collected in the course of the FOT, special track tests, and driver interviews. Time domain vehicle dynamic simulations and…
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Date Posted
09/16/2008

Winter maintenance personnel indicated that road weather information systems and anti-icing techniques reduce the frequency of crashes and insurance claims.

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FINDINGSPerformance MeasuresRWIS BenefitsAnti-icing BenefitsSafetyReduced crash frequencyLess disruption of emergency servicesReduced crash frequencyDecrease in insurance claimsAlso noted were anti-…
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Date Posted
11/06/2001

Winter maintenance personnel indicated that road weather information systems decrease salt usage, and anti-icing techniques limit damage to roadside vegetation, groundwater, and air quality (where abrasives are applied).

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FINDINGSPerformance MeasureRWIS BenefitsAnti-icing BenefitsEnvironmental QualityImproved quality as a result of reduced salt usageReduced impact on roadside vegetation, aquifers, and…
Content type
Date Posted
11/06/2001

Winter maintenance personnel indicated that anti-icing techniques limit snow/ice bonding on roadways, improve plow efficiency, reduce the time required to clear snow/ice from roadways, reduce maintenance costs (overtime pay and materials), and reduce

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FINDINGSPerformance MeasuresAnti-icing BenefitsProductivityLess snow/ice bonding facilitated more efficient plowingReduced maintenance costs (overtime pay and materials)Reduced time to clear snow/ice…
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Date Posted
11/06/2001

Winter maintenance personnel indicated that road weather information systems improved the efficiency of response strategies, reduced maintenance costs (staff, equipment and materials), assisted with crew scheduling, and improved data sharing.

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FINDINGSPerformance MeasuresRWIS BenefitsProductivityMore efficient response strategies (right resources, in right place, at right time)Reduced maintenance costs (labor, equipment and materials)…
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Date Posted
11/06/2001

Winter maintenance personnel indicated that road weather information systems reduced travel times, and anti-icing techniques decreased the need for road closures.

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FINDINGS   Performance Measure RWIS Benefits Anti-icing Benefits Mobility Reduced travel times Improved traveler information…
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Date Posted
11/06/2001

Evaluation of the Environmental Effects of Intelligent Cruise Control (ICC) Vehicles

This study used field experiments and simulation models to quantify the environmental benefits of intelligent cruise control (ICC) vehicles. Field tests were conducted using one ICC vehicle and two…
Content type
Date Posted
06/27/2001

The average cost to implement Adaptive Signal Control Technology is $28,725 per intersection.

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Adaptive signal control technologies (ASCTs) have been proven effective in providing operational benefits, but agencies in the United States have been slow to adopt these technologies. One of the…
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Made Public Date
03/05/2013

Recent contract awards suggest the capital costs to implement bus AVL systems range from $10,000 to $20,000 per vehicle.

This research documented the current state-of-practice of fixed-route and demand responsive automatic vehicle location (AVL) systems. A literature review was conducted and the results of on-line…
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Made Public Date
09/28/2009

The cost for Roll Stability Control (RSC) systems for large trucks range from $439.99 and $1,101.39.

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The technology and deployment cost estimates for the Roll Stability Control (RSC) systems include the technology purchasing price, maintenance costs, and cost of training drivers in the use of the…
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Made Public Date
09/08/2009

The initial capital costs for software development and systems integration at the Chicago TMC were estimated at $4 million.

The cost of an Archived Data Management System (ADMS) can vary widely depending on the size of the system and features provided.

A cross-cutting study, Archived Data Management Systems, published by the U.S. DOT in 2005 noted, "When operations data are integrated into an Archived Data Management System (ADMS), they offer a…
Content type
Made Public Date
08/11/2008

The capital costs to implement TSP range from $5,000 per intersection (if existing software and controller equipment are used) to $20,000 to $30,000 per intersection (if software and control equipment are replaced).

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The Transit Signal Priority (TSP) - A Planning and Implementation Handbook, published by the Federal Transit Administration (FTA), provides technical guidance for the successful planning and…
Content type
Made Public Date
08/06/2008
Taxonomy (ARC-IT) Transit Signal Priority (PT09)

Cost estimates to install collision warning systems (CWS) range from $2,000 to $3,000 per tractor. Bundled packages of CWS and adaptive cruise control cost approximately $2,300; the cost is approximately $6,300 if an advanced braking system is added

The U.S. DOT sponsored an independent evaluation of a field operational test (FOT) of three advanced intelligent vehicle safety systems (IVSS): collision warning systems (CWS), adaptive cruise…
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Made Public Date
05/20/2008

Various safety- and driver assistance-related systems such as blind spot monitoring, route guidance, adaptive cruise control, automatic collision notification, and lane departure warning are available for purchase as an individual option or a bundled

In February 2006, the U.S. Department of Transportation (DOT) published a report entitled “Private Sector Deployment of Intelligent Transportation Systems: Current Status and Trends” that summarized…
Content type
Made Public Date
05/05/2008

The costs to plan, purchase, install, and operate and maintain an animal detection system on a one-mile section of roadway have been estimated at $31,300 per year.

This report compiled data from several evaluation studies that examined the impacts of animal warning systems in the United States and Europe. Data collected from previous reports, Internet resources…
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Made Public Date
04/23/2008

Based on a nationwide survey of states operating overheight detection systems, the initial costs of active laser- or infrared-based systems vary considerably, ranging from $7,000 to $70,000.

The Alaska Department of Transportation & Public Facilities (DOT&PF) sponsored a research project titled, Evaluation of Overheight Vehicle Warning Devices, to synthesize existing data and…
Content type
Made Public Date
04/23/2008

For six types of intersection collision warning scenarios, the cost of the design, equipment, and installation ranged from $47,230 to $73,320 per intersection.

The Federal Highway Administration Safety Office sponsored a project to define, evaluate, and test the feasibility of infrastructure-only Intersection Collision Avoidance System (ICAS) concepts at…
Content type
Made Public Date
04/21/2008