Remote yard and site monitoring in Tucson

Local and live

Freight on the Union Pacific line and I-19 to the border

Southeast of the city, the Port of Tucson is a roughly 700-acre inland port and rail yard sitting on Union Pacific's main line and next to I-10, with more than 2.2 million square feet of manufacturing, warehousing and distribution buildings and 13 miles of its own track. It operates as both a Foreign Trade Zone and a state enterprise zone, and it sits about 70 miles north of the Nogales border crossing on I-19, which carries freight between Tucson and Mexico. Trucking yards and warehouses elsewhere in the city sit along I-10 and I-19 as well, feeding that intermodal traffic.

Tucson recorded 2,060 vehicle thefts in 2025, according to the Arizona Automobile Theft Authority, even as Arizona's statewide count fell to a record low of 12,686, down 25 percent from 17,010 in 2024. A rail-served yard or trailer lot near the Port of Tucson or along I-10 carries its own version of that exposure: loaded trailers and containers staged for the next train or truck, often with nobody on site once the day's loading is done.

Sigma's agents watch a Tucson yard the same way around the clock, 24 hours a day, 365 days a year, rather than relying on a recording that sits unwatched until something is missing. AI person and vehicle detection flags movement near parked trailers or containers, an agent checks the live feed, gives a live, instant talk-down through the site's speakers and calls police and your contacts, and you get video clips and a written report. Yard Operations adds truck and trailer logs and visual seal checks on video for loads moving through.

Also covering South Tucson, Marana, Oro Valley, Sahuarita, Vail, Catalina, Flowing Wells, Casas Adobes.