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Street lights can be made intelligent by placing cameras or other sensors on them, which enables them to detect movement (e.g. Sensity's Light Sensory Network, GE's "Currents", Tvilight's CitySense). [5] [6] Additional technology enables the street lights to communicate with one another. Different companies have different variations to this ...
A lighting control system is intelligent network-based lighting control that incorporates communication between various system inputs and outputs related to lighting control with the use of one or more central computing devices. Lighting control systems are widely used on both indoor and outdoor lighting of commercial, industrial, and ...
The development of automatic headlight systems at General Motors can be traced back to the early 1950s. In 1952, GM introduced the Autronic Eye, an automatic headlight dimming system, for Oldsmobile and Cadillac models. [2] Twilight Sentinel, which expanded on the concept of automatic lighting control, was introduced in the mid-1960s.
Smart highways and smart roads [1] are highways and roads that incorporate electronic technologies. They are used to improve the operation of connected and autonomous vehicles (CAVs [2]), for traffic lights and street lighting, and for monitoring the condition of the road, as well as traffic levels and the speed of vehicles.
The requirement was extended to light trucks and vans for the 1994 model year. Early studies involving taxicabs and other fleet vehicles found that a third high-level stop light reduced rear-end collisions by about 50%. Once the novelty effect wore off as most vehicles on the road came to be equipped with a CHMSL, the crash-avoidance benefit ...
Romanian and US research teams believe that the time spent by motorists waiting for lights to change could be reduced by over 28% with the introduction of smart traffic lights, and that CO 2 emissions could be cut by as much as 6.5%. [4] A major use of Smart traffic lights could be as part of public transport systems.
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Isolated control is where the timings of the junction or crossing are not linked to any other junctions or crossing. Failures: If power is still available, a flashing amber light is used to warn of an intersection. Methods to distinguish the main road from the secondary road (and hence right of way) include using yield (give way) signs, stop ...