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Hudson engineers and vendor report improved traffic flow after adaptive‑signal rollout; council asks for public metrics and cloud details
Summary
City staff and TMS engineers described an adaptive traffic signal system along State Routes 91 and 303 that converted loop detectors to video detection and uses SentraX Mobility software; presenters reported improved arrival‑on‑green measures and called for a brief public metrics summary. Council asked about video storage, cloud hosting and cyber resilience.
Hudson City Council heard a technical briefing on Jan. 27 about the city’s recently completed adaptive signal project along State Route 91 and State Route 303, which staff said was partially funded by a state congestion mitigation and air quality grant of roughly $2,600,000.
The engineering presenter for the city described how the system, implemented in 2024–2025, replaced older in‑ground loop detectors with video detection and centralized control through a software interface called SentraX and SentraX Mobility. “We can see the system online in real time,” the engineering presenter said, describing point‑tilt‑zoom cameras at several intersections. He added these cameras are not recording under the current setup.
Michael Schwarcert, the engineer from TMS Engineers who helped design and implement the project, summarized performance data during the meeting: in one five‑day Monday‑through‑Friday sample on State Route 91, staff observed about 75,000 arrivals on green and 45,000 arrivals on red, and corridor average delay decreased to about five seconds per vehicle from “more than double” that under the old system. “So we’ve seen a great deal of improvement,” Schwarcert said.
Councilors pressed staff on several operational and governance questions. Members asked whether the system records video and where software and analytics run. The engineering presenter said the city is not storing video now and that SentraX Mobility uses cloud servers managed by the manufacturer; staff committed to follow up with which cloud backbone is used (for example, AWS or Azure) and to provide detail on backup behavior if the vendor cloud is unavailable. The presenter said a built‑in fallback runs the last plan in the event of an outage.
Council members also urged clearer public reporting. One councilor asked staff to create a concise public‑facing summary with one or two global metrics and a simple graph showing progress and goals for residents; staff agreed to work with communications on an informational flyer or web display.
On security, staff said cybersecurity and system resilience were included in the project contract and that the city’s IT team worked closely during implementation. On monitoring, they said alerts exist but sensitivity needs tuning to avoid tens of false alerts per day.
The meeting closed the item with staff agreeing to provide the cloud‑backbone vendor information, consider alert‑tuning options, and produce a public metrics summary for council and residents.
