What is the pole they strapped to the traffic light? I've seen

What are those small black boxes attached to traffic lights in NYC and other major cities across the US, and what do they do? Are they surveillance cameras or something else entirely?

Brigitte Gerney Was Crushed by a 35-Ton Crane, and Lived - The New York Times

What's this thing on top of every traffic light? : r/anchorage

Voters won't get to decide whether to ban traffic cameras, after bill voted down, Traffic

Western U.S.

Bizarre Antennas on Stop Signs in Billings? Wrong Answers Only

Some Austin traffic signals are still dark, making intersections more dangerous

Why would two telephone poles be adjacent to one another and are there public records on work done on those poles? - Quora

What is the pole they strapped to the traffic light? I've seen quite a few of these in the last couple days. : r/Edmonton

820 - Traffic Signals - MediaWiki

Police in Greenwood 'inundated' with calls about black radar boxes

Traffic Signal / Overhead Sign Structures - Light Pole Anchor Bolts

Racing through traffic at 90+ MPH + View of crash results (2 videos combined) : r/IdiotsInCars

A traffic light hangs from a pole as shown in the figure. The uniform aluminum pole AB is 7.10 m long and has a mass of 12.5 kg . The mass of

The Ultimate Guide To Modern Traffic Signal Pole Types