Kapsch TrafficCom has filed a patent for a method of controlling event-responsive traffic lights at intersections. The system involves a controller switching lights in phases based on traffic flow, with a server generating phase sequences and sending the most cost-effective set to the controller for implementation. GlobalData’s report on Kapsch TrafficCom gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Kapsch TrafficCom, Crowdsourced EV service mgmt was a key innovation area identified from patents. Kapsch TrafficCom's grant share as of January 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.
Method for controlling traffic lights at intersections based on events
A patent application (Publication Number: US20240021079A1) describes a method for controlling event-responsive traffic lights at an intersection of lanes in a transportation network. The method involves a controller that switches the traffic lights in cycles and phases, with each phase corresponding to a different switching state of the lights. The controller, connected to a central server and sensors measuring traffic flows, generates candidate sets of phase sequences based on traffic flow data. The server calculates a cost measure for each candidate set, considering traffic flows and durations, and sends the set with the lowest cost measure to the controller for implementation. This process is repeated in successive intervals, ensuring efficient traffic management at the intersection.
Furthermore, the patent application includes details on the intervals lasting at least two cycles, the generation of candidate sets where specific phases occupy time slots with minimum durations, and the calculation of cost measures as average waiting time or queue length. The central server, in addition to being connected to sensors measuring traffic flows on lanes, can also connect to a further sensor for additional lane traffic data. By taking into account traffic flow on all lanes, the server can optimize the phase sequences sent to the controller, ultimately improving traffic flow and reducing congestion at the intersection. Overall, the method outlined in the patent application aims to enhance the efficiency and effectiveness of traffic light control systems in transportation networks, leading to smoother traffic flow and improved overall traffic management.
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