초록 ▼

The invention relates to a rule-based method for effective distributed adaptive signal control of traffic networks, and an apparatus using the method. Queue estimates and sets of rules are used to determine the signal state at each intersection in the network. The queue estimation uses real-time dat

The invention relates to a rule-based method for effective distributed adaptive signal control of traffic networks, and an apparatus using the method. Queue estimates and sets of rules are used to determine the signal state at each intersection in the network. The queue estimation uses real-time data from detectors upstream from an intersection to estimate the number of vehicles approaching the intersection and the vehicles in queue. Each detected vehicle is treated as a group of "partial" vehicles corresponding to approved movements that the vehicle might make. The queue estimation and control logic that determine the signal state can be implemented as a distributed system. The signal control logic consists of a set of rules for uncongested control and a process that creates a fixed time plan for congested control.

대표청구항 ▼

The invention relates to a rule-based method for effective distributed adaptive signal control of traffic networks, and an apparatus using the method. Queue estimates and sets of rules are used to determine the signal state at each intersection in the network. The queue estimation uses real-time dat

The invention relates to a rule-based method for effective distributed adaptive signal control of traffic networks, and an apparatus using the method. Queue estimates and sets of rules are used to determine the signal state at each intersection in the network. The queue estimation uses real-time data from detectors upstream from an intersection to estimate the number of vehicles approaching the intersection and the vehicles in queue. Each detected vehicle is treated as a group of "partial" vehicles corresponding to approved movements that the vehicle might make. The queue estimation and control logic that determine the signal state can be implemented as a distributed system. The signal control logic consists of a set of rules for uncongested control and a process that creates a fixed time plan for congested control. evice and a data display device; b) entering a mechanic identification number and password and verifying access; c) entering repair order data and verifying access; d) entering part information data; e) selecting the desired part for the vehicle; f) rotating a drum element to position a chamber at an access door; g) releasing the access door and monitoring for door opening and time to access; h) securing the door if the access door is opened and closed or time to access has elapsed; and i) accounting for inventory and sales, and billing for delivered parts. 10. The method in claim 9 further comprising the steps of: returning the parts inventory system to a ready state if the data entered in steps b, c, d or e is incorrect. 11. The method in claim 9 further comprising the steps of: sending an error message if the drum element is not positioned properly. 12. The method in claim 9 further comprising the steps of: sending an error message in the event step i is not completed. 13. The method as in claim 9 further comprising the steps of: displaying available parts inventory based on data entry.