The contractor for this object was the government of the United States of America, which has a contractual relationship with Tetra Tech EC, Inc. for radiation gate construction in several regions of the world, including Latvia. Radiation gates are a device which helps to check goods and people for radioactivity. Our responsibility was a low-voltage drain that connects the entire radiation gate and the construction. We undertook the cable design and construction works – constructed optical and electrical networks as well as local networks, ensuring all active and optical devices, as well as the data network. As such, we installed and connected terminal equipment provided by the customer – video cameras, radiation gate control panels, as well as conducted the installation of the system in cooperation with engineers from Tetra Tech EC, Inc. We also constructed a barrier control system, which provides control of entry and exit from the object. We also connected a traffic light system, to regulate traffic organisation in the Ventspils Freeport territory. At the radiation gate, proper transportation movement is also ensured by markings on the roadways.