Running such a large and diverse cellular communications network with a 99.99% availability requirement demands a high level of automation, a highly reliable hardware/software platform and network fault tolerance/redundancy, as well as great management tools and accurate performance metrics. Its onboard edge computing platform, built on an embedded Python environment, enables custom integration with non-standard ITS devices and quick adaptation to evolving system requirements. The Digi cellular router connects to the existing traffic controller and functions as the gateway to the TMC for all ITS devices. The antenna is actually multiple antenna elements housed within a single impact-resistant radome, and supports cellular, GPS, Wi-Fi and Bluetooth.

The POE switch enables communication with cameras and expands the Ethernet port count for connection to various ITS devices such as a CV Roadside Unit (RSU). Planning, testing and troubleshooting by the implementation engineer kept the project moving forward, along with coordinated engagement of Digi engineering and technical support when required.Īt each cabinet, the previous NYCWiN equipment was replaced with the Digi cellular router, a PCTEL antenna and a Transition Networks Power-over-Ethernet (POE) switch. The tailored implementation services included onsite personnel working daily with NYC DOT network engineers and contractors for nearly a year.

The previous NYCWiN network was decommissioned that same month.ĭigi provided expert assistance and dedicated resources during system integration and deployment. The solution proposed by AT&T and Digi progressed through pilot in early 2019 and then into deployment starting in October, finishing ahead of schedule in June 2020. Critical areas included concurrent dual carrier failover/fallback, centralized device management, NYC Cyber-approved encryption and support for Connected Vehicle (CV). NYC DOT’s years of operational experience with the previous NYCWiN network and knowledge of emerging trends resulted in a detailed specification for the replacement network. Due to these dynamics, especially in dense and crowded NYC, effective traffic management is not possible without a high speed and reliable communications network and centralized management. Special events, construction, or traffic incidents typically wreak havoc on traffic conditions in cities. It obtains vehicle queue depth and movement from various types of sensors located throughout the city, then adjusts signal timing by coordinating with Advanced Sold-state Controllers (ASTC) located at each intersection. An intelligent software application operating at NYC DOT’s Traffic Management Center (TMC) in Long Island City accommodates changing traffic patterns and eases traffic congestion. New York City DOT’s traffic management system controls the traffic signals at 14,000 intersections, as well as a range of Intelligent Transportation Systems (ITS) devices including traffic cameras, variable message signs and vehicle detection devices. It is a tremendous commitment, especially in the largest and busiest city in America. Their stated mission is to provide for the safe, efficient, and environmentally responsible movement of people and goods in the City of New York and to maintain and enhance the transportation infrastructure crucial to the economic vitality and quality of life of our primary customers, City residents. NYC DOT oversees one of the most complex urban transportation networks in the world, with 6,300 miles of streets and highways, over 12,000 miles of sidewalk, nearly 14,000 signalized intersections and 800 bridges and tunnels. The end result is a citywide traffic system communications upgrade, including Digi Remote Manager® (Digi RM), a Digi dual cellular router at each intersection, and customized Digi software and services. The project involved collaboration of multiple vendors and agencies working together on a tight timeline. In 2020, the New York City Department of Transportation completed a large-scale Intelligent Transportation System (ITS) deployment, led by AT&T.

New york traffic lights