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Augment Roadside Units with More Traditional ITS Technologies to Support Connected Vehicle Applications

The lessons learned and best practices were organized under four categories (procurement, design, installation, and testing) and included the following:  Conduct thorough technical scans to…
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Date Posted
11/25/2025

Use of Thermal Imaging Cameras in NYC for Pedestrian Detection Had the Highest Accuracy Rate (87 Percent) at Night, Compared to Other Times of Day.

For the Pilot, 10 intersections were outfitted with FLIR thermal imaging cameras capable of detecting pedestrian presence, pedestrian counts, and detection latency for in-time delay (delay between…
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Date Posted
05/30/2024

Conduct Durability Tests to Ensure Antenna Mounting Supports Proper Connected Vehicle Communications for Large Vehicles.

Conduct interoperability test to identify potential issues that would require resolution prior to the sites advancing to an operational phase. The three-day testing event was a major victory for the…
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Date Posted
02/29/2024

Manage Deployment Risks Related to Connected Vehicle Technology Maturity by Reducing Exposure to External Uncertainties and Adding Testing at an Earlier Stage.

Broaden the definition and concept of technical maturity to increase stakeholder knowledge and allow for better risk management. The lack of technology maturity resulted in challenges such as…
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Date Posted
12/28/2022

Local Validation and Evaluation of Pedestrian Detection Using Thermal Imaging Technology is Needed, Especially in Areas with Complex Traffic Conditions and Road User Activities.

Several lessons learned were captured during the evaluation of FLIR pedestrian detection, particularly from the detection accuracy of the FLIR sensors under different conditions. Perform the…
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Date Posted
11/28/2022

Opt for Quartz Weigh-in-Motion Sensors Rather than Traditional Piezo-Type Sensors for More Reliable and Accurate Data Collection.

Opt for quartz sensors rather than traditional piezo-type sensors at WIM stations. It was found in this study that the quartz sensors provide more reliable and accurate data compared to traditional…
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Date Posted
06/29/2022

After trying several variations, NYCDOT finds optimal vertical mounting approach for installing roadside units (RSUs) at signalized intersections.

The NYC CV Pilot project’s innovative use of lasers generated a precise, repeatable way of verifying the accuracy of a vehicle’s location in their efforts to overcome the GPS limitations of the City’s urban canyons.

To correct for this, the NYCDOT CV Pilot team is using an enhanced V2X-locate positioning engine to improve location accuracy. By measuring the time-of-flight from Roadside Units (RSU),…
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Date Posted
10/28/2020
Taxonomy (ARC-IT) Freight Administration (CVO02)

Develop collaborations with probe and crowdsourced data platforms to manage traffic in real-time, make better infrastructure decisions, and provide accurate and relevant travel information directly to citizens.

Content references source material no longer available at its original location.
Develop collaborations with probe and crowdsourced data platforms to manage traffic in real-time, make better infrastructure decisions, and provide accurate and relevant travel information directly…
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Date Posted
06/30/2019

Refine proper antenna placement on connected vehicles (particularly commercial vehicles) to reduce DSRC ‘shadow’ areas where DSRC signal is degraded.

Infrastructure integrating the next generation internet standard (IPV6) is crucial to support the future growth of connected vehicle networks.

Early CV deployers must assess existing agency systems and networks as well as their change control procedures to accommodate the security needs of CV technology.

The following lessons address changes agencies may have to make to their existing systems and/or operations to accommodate the security needs of CV technology. Emphasis is particularly placed on the…
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Date Posted
05/20/2019

CV Pilots find success in implementing data collection techniques that focus on edge computing to avoid the unmanageable flow and processing of data at a central TMC.

The following lessons were identified regarding the sensitivities with the type and amount of data that needs to be collected and the need for a data governance framework that outlines how data will…
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Date Posted
04/22/2019

During system testing, CV Pilot sites discover the importance of having expertise in detecting and mitigating interferences with radio frequency and GPS signals

Connected vehicle deployers are encouraged to utilize multi-vendor outsourcing and to source suppliers early to foster collaboration that enables as much parallel work as possible.

Refine institutional arrangements when deploying connected vehicle technology to outline the expectations of partners in terms of service, outcomes and reporting.

Connected vehicle deployers should assess field equipment and organizational capabilities that will be needed to support core CV components.

New York City Connected Vehicle pilot deployment project works to overcome challenges associated with pursuing a density of vehicle interactions never previously attempted with CV technology.

For DSRC communications, message exchanges should be managed using channel variety and varying power levels appropriate for the spatial density of the roadside units (RSUs)   The reliance…
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Date Posted
11/28/2018

Facing a gap in standards interpretation, the Tampa and New York City Connected Vehicle Pilot Sites worked together to harmonize message structure for pedestrian safety applications.

One of the goals of the CV Pilot Deployments is to accelerate the deployment of interoperable connected vehicle technologies in the advancement of the national highway system. The vision for…
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Date Posted
11/28/2018

Connected Vehicle Pilot Deployment Program yields program management best practices for integrating and testing large disparate systems.

Each of the three Connected Vehicle Pilot Deployment sites (Wyoming, Tampa, NYC), while unique regarding size, features, and functionality to be deployed, are all examples of large disparate systems…
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Date Posted
09/13/2018

Allow for increased coordination with the Interdepartmental Radio Advisory Committee (IRAC) early on in the DSRC licensing process to help reduce what is traditionally a very lengthy process.

The New York City Department of Transportation (NYCDOT) led Connected Vehicle (CV) Pilot program has completed an 18-month Federal Communications Commission (FCC) licensing process to use Dedicated…
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Date Posted
06/22/2018

Incorporate standardized over-the-air update procedures to permit efficient firmware updates for connected vehicle devices.

The New York City Department of Transportation (NYCDOT) led Connected Vehicle (CV) Pilot program has procured and developed processes to update connected vehicle software to implement vehicle-to-…
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Date Posted
06/22/2018

Tune traffic density and speed parameters within connected vehicle (CV) applications to balance proper alerts versus false alarms in dense urban areas.

  Lessons Learned from the NYCDOT Connected Vehicle Pilot Update at the System Design Milestone webinar. Address privacy of safety/operational data using multiple tools.Stakeholders need…
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Date Posted
06/19/2018

RSU triangulation techniques and inertial GPS solutions can improve geolocation accuracy for connected vehicles operating in dense urban areas.

New York City is known for its "urban canyons" which provide a challenging areafor GNSS (Global Navigation Satellite System - a broader term including GPS and other similar systems) technology; as a…
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Date Posted
05/08/2018

Include technical, operations, and legal personnel in stakeholder meetings to address the requirements of the CV deployment and ensure that participants' privacy is being maintained

Emphasize financial sustainability in concept development. Keep long-term funding goals in mind when tailoring a concept to meet a short-term budget.

LESSONS LEARNED FROM USDOT PERSPECTIVE:     Program Management (Acquisition Strategy and Outreach) Conduct consistent and organized meetings with the entire acquisition team (federal…
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Date Posted
03/27/2017

Involve end users and regional stakeholders, follow agency protocol for software development and release, and gain upper management support when designing and developing an Integrated Incident Management System.

The Integrated Incident Management System (IIMS) is a project in New York City (NYC) to facilitate information sharing and coordination among responders and traffic agencies for the purpose of…
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Date Posted
03/31/2011

Ensure redundancy of critical components in transportation support systems to be used in case of an emergency.

Redundancy, the ability to activate backup systems in cases of system failure, is a major element in emergency response and recovery plans. The backup systems needed in a particular emergency will be…
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Date Posted
06/04/2010

Develop a regional ITS architecture with a common data server to facilitate ITS integration in a region

The MMDI set in motion an aggressive schedule of ITS deployment in four regions: San Antonio, Phoenix, Seattle, and New York City metropolitan area (which included parts of three states, New York,…
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Date Posted
05/19/2010

Use non-proprietary software for ITS projects to ensure compatibility with other ITS components

Ensure reliable and interoperable communication between transportation and public safety agencies and use ITS to promptly disseminate travel updates to the public during emergencies.

The ability to communicate both internally and externally is a critical technological capability required in an emergency. During a crisis, the need to acquire situational awareness drastically…
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Date Posted
03/11/2010

Sustain ITS network operations and interagency communications during emergencies by ensuring provisions for alternate power supply and telecommunications services.

Technology has come to play an increasingly crucial supporting role in aiding transportation decision makers during normal day-to-day operations and, more importantly, during times of crisis.…
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Date Posted
02/08/2010

In preparation for managing transportation in catastrophic emergencies, identify agencies and their decision makers to interact with, and establish effective coordination with them to execute response.

The analysis of transportation operations during multi-agency response to catastrophic events nationwide offers some valuable lessons learned as presented below. Conduct emergency transportation…
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Date Posted
01/29/2010

Develop and rehearse an emergency response plan for managing catastrophes with minimum panic, disruption and loss.

The analysis of transportation agencies' planning for response to emergencies in the event of catastrophes offers some lessons learned as presented below. Create an emergency response plan to manage…
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Date Posted
01/21/2010

Enhance transit safety and security systems by integrating voice and data technologies and by leveraging video-based systems.

Transit agencies have used technology to improve the safety and security of their operations for decades. Video technologies have been used in and around transit facilities to monitor weather…
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Date Posted
03/10/2008
Taxonomy (ARC-IT) Transit Security (PT05)

Strengthen existing maintenance and repair capabilities at Transportation Operation Centers (TOCs).

Many TOCs in the country have now entered into their second-generation life cycle and have successfully implemented day-to-day TOC operations in their jurisdictions. TOCs from California, Minnesota,…
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Date Posted
02/21/2007

Prepare traveler information Web sites for high usage under emergency or disaster conditions.

When implementing a new traffic information Web site, the technical staff should consider the likelihood of high usage of the system. Prepare traveler information Web sites to accommodate high…
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Date Posted
12/13/2006

Use a systems engineering approach for technical integration of ITS.

The key to a successful interoperable transportation system is to integrate ITS via a systems engineering approach into all stages of planning, designing and deployment of transportation projects at…
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Date Posted
03/24/2006

Develop written policies that delimit the use and distribution of data.

The value of the MDI operations lay in the data that is generated by the equipment and systems involved. Data policy issues that have been reviewed and tackled by the MDI partners include resolving…
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Date Posted
10/12/2005

Seventy-One Percent of Pedestrians with Vision Disabilities Were More Confident in Crossing Signalized Intersections with New York City’s PED-SIG Application Than with Other Technologies.

Methodology The PED-SIG application was evaluated based on operational data logs collected from the PIDs, field test observations, as well as qualitative feedback provided by participants before and…
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Date Posted
11/30/2022

Connected Vehicle Speed Limit Warnings Increased Speed Compliance by 16 Percent During a Pilot Test in New York City.

METHODOLOGY The deployed vehicles experienced 107,609 alerts by V2I applications and 52,680 by V2V applications. Of all these events, 65,231 alerts were silent and 95,058 alerts were active. After…
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Date Posted
11/28/2022

NYC Connected Vehicle Pilot Found That 83 Percent of Participants Felt Safer When Using the Mobile Pedestrian Crossing App Compared to Not Using It.

METHODOLOGY The NYC CV pilot deployment collected 189,374 total events (defined as a warning, alert, or some other triggering parameter within the vehicle) from January 2021 to November 2021. All the…
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Date Posted
05/28/2022

Rise of ridesharing credited with a 25 to 35 percent decrease in alcohol-related collisions in NYC.

The study draws on a dataset of all New York State alcohol-related collisions maintained by the New York State Department of Motor Vehicles. The full estimation sample contains 4,526 observations of…
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Date Posted
10/16/2019

An autonomous mobility-on-demand dispatching system can reduce average passenger wait time by 30 percent and increase trip dispatch success rate by 8 percent.

Researchers at the University of California-Irvine tried to bridge this gap by introducing a new algorithm identified as the Expand and Target (EAT) algorithm. This algorithm enables managing…
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Date Posted
06/26/2019

NYC Automated Speed Enforcement pilot sees a 14 percent decline in the overall number of people injured in crashes in school zones where speed cameras were activated.

Findings   Total crashes decreased by nearly 8 percent following the installation of the speed cameras. Crashes resulting in injuries dropped over 14 percent, including a 23 percent…
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Date Posted
01/25/2019

New York City’s app-based ride services provide increased mobility options but with a cost: over 600 million additional vehicle miles travelled over three years.

MethodologyThe report utilized datasets available for TNCs, taxicabs and other for-hire vehicles in New York City:Electronic trip logs of taxis and TNCsWeekly for-hire vehicle (FHV) trip…
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Date Posted
02/21/2018

Bus speeds increased by 23 percent in Los Angeles and by more than 20 percent on a route in New York City after deployment of Bus Rapid Transit.

Findings After deployment of BRT, bus speeds increased by 23 percent in highly transit-dependent urban core corridors in Los Angeles. This improvement was specifically linked to transit signal…
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Date Posted
02/20/2018
Taxonomy (ARC-IT) Transit Signal Priority (PT09)

Provision of real-time transit information yields a median ridership increase of 2.3 percent on the largest quartile of bus routes in New York City.

Content references source material no longer available at its original location.
Findings A refined fixed effects model reveals the largest quartile of routes, defined by revenue miles of service, realized approximately 340 additional trips per route per weekday, a median…
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Date Posted
01/26/2018

New York State DOT TMC operators and New York State Thruway Authority staff were able to reduce traffic queues by 50 percent using vehicle probe data available through the I-95 Corridor Coalition.

FINDINGS In 2009, a sergeant of the New York State Police Department used the vehicle probe data provided by the I-95 Corridor Travel Time website and data from the New York 511 website to assist in…
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Date Posted
10/04/2010

Researchers estimated there are about 0.17 billion air cargo shipments each year in the United States that could benefit from Electronic Supply Chain Manifest (ESCM). With potential cost saving benefits ranging from $11.77 to $16.20 per air-freight

RESULTSThe U.S. DOT evaluated a Web-based Electronic Supply Chain Manifest (ESCM) system and compared its performance with a traditional paper-based manifest system. ESCM delivered labor cost…
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Date Posted
11/26/2008
Taxonomy (ARC-IT) Freight Administration (CVO02)

Manufacturers, carriers, and airports that used a Web-based air cargo security and logistics tracking system felt it was easy to use, and were very satisfied with the system's performance with respect to business functions.

FINDINGSThe overall impact of ESMC on operations was measured based on interviews with participants and system implementers (ATAF). In general, the following comments were noted.Participants felt…
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Date Posted
11/04/2008
Taxonomy (ARC-IT) Freight Administration (CVO02)

Electronic supply chain manifest systems reduce the amount of time and paperwork required to transfer loads, and can improve operational efficiencies for shippers/receivers, trucking companies, and air cargo carriers.

FINDINGSThe following results show the time saving benefits of automated versus manual processing (biometric/smart-card authorization vs. manual duplication/photocopying of all paperwork) at transfer…
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Date Posted
01/01/2003
Taxonomy (ARC-IT) Freight Administration (CVO02)

Automated enforcement systems reduced red light violations by 20 to 60 percent, decreased right-angle crashes by 30 percent, and reduced crash injuries by 10 percent.

RESULTS New York City, NY: A number of robotic cameras were installed at 18 intersections equipped with pavement loop detectors. The total cost was 15.5 million dollars over a three year period.…
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Date Posted
05/25/2001

Automated enforcement systems have reduced red-light violations by 20 to 60 percent and crashes by 22 to 51 percent.

FINDINGS Red Light Enforcement Systems The automated red-light enforcement system in New York, NY began operation in 1993 with enforcement at 15 intersections; by 1998, 30 intersections were…
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Date Posted
01/04/2001

Freeway Services Patrols: A State of the Practice

The Cost To Implement Video Data Storage and Networking Services To Support 68 Traffic Cameras in New York City Was Estimated at $1,663 per Year Annualized Over Three Years.

This study’s primary objective was to introduce a continuous, remote, and real-time pedestrian detection and social-distancing data acquisition system on an existing video surveillance system in New…
Content type
Made Public Date
08/27/2021

NYC operated an Automated Speed Enforcement program in 140 school zones with 180 speed cameras for over two years at a cost of $69,460,446.

Combating excessive speeding was the leading recommendation provided by New York City residents during the Vision Zero town halls and workshops held by the New York City Department of Transportation…
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Made Public Date
01/25/2019

Deployment of 8,500 connected vehicles with roadside devices installed at 310 intersections and 44 strategic sites and major thoroughfares in New York City was estimated to cost $23.5 million.

In September of 2015, USDOT selected New York City Department of Transportation (NYCDOT), Wyoming Department of Transportation (WYDOT) and Tampa Hillsborough Expressway Authority (THEA) as the…
Content type
Made Public Date
11/28/2017