SignalShield’s portable traffic-control platform

Field notes

SignalShield describes a local-link traffic-control system in which a phone controller discovers nearby units, groups mixed models, and applies approved phases or manual signs. Response 4 is presented with up to four display nodes and five additional paired devices, while WorkZone 2 targets temporary road work and school crossings. The page labels the system a patent-pending working prototype concept, and says school-specific placement and operation require review by local authorities before deployment.