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(Solved): (10 points) The figure below shows the intersection of a main highway with a secondary access road. ...




(10 points) The figure below shows the intersection of a main highway with a secondary access road. Vehicle-detection sensors
(10 points) The figure below shows the intersection of a main highway with a secondary access road. Vehicle-detection sensors are placed along lanes and D (main road) and lanes A and B (access road). These sensor outputs are LOW (' 0 ') when no vehicle is present and HIGH ('l') when a vehicle is present. The intersection traffic light is to be controlled according to the following logic: i. The east-west (E-W) traffic light will be green whenever both lanes and are occupied. ii. The E-W light will be green whenever either or is occupied but lanes and are not both occupied. iii. The north-south light will be green whenever both lanes and are occupied but and D are not both occupied. iv. The light will also be green when either or is occupied while and are both vacant. v. The E-W light will be green when no vehicles are present. Use the sensor outputs A, B, C, and D as inputs, design a logic circuit to control the traffic light. There should be two outputs, N-S and E-W, that go HIGH when the corresponding light is to be green. Produce the truth table corresponding to the requirements. Answer:


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