Systems and methods for detecting yellow trap sequences
View Patent ↗A malfunction management unit includes an input/output module communicatively coupled to a controller. The input/output module is configured to monitor a sequence of intersection phases determined by the controller. A yellow trap detection module communicatively coupled to the input/output module is configured to determine whether a yellow trap sequence has occurred within the sequence of intersection phases. The yellow trap sequence may comprise a first state followed by a second state, the first state corresponding to permissive left turns in both a first direction and a second, opposing direction, and the second state corresponding to a protected left turn in the first direction.
1. A malfunction management unit comprising:
an input/output module communicatively coupled to a controller, wherein the input/output module is configured to monitor a sequence of intersection phases determined by the controller; and
a yellow trap detection module communicatively coupled to the input/output module, the yellow trap detection module configured to determine whether a yellow trap sequence has occurred within the sequence of intersection phases, wherein the yellow trap sequence comprises a first state followed by a second state, the first state corresponding to permissive left turns in both a first direction and a second, opposing direction, and the second state corresponding to a protected left turn in the first direction.
2. The malfunction management unit of claim 1 , wherein the yellow trap detection module comprises a memory having configuration data stored therein, the configuration data including a list of one or more of the intersection phases and the relationship between the one or more intersection phases.
3. The malfunction management unit of claim 2 , wherein the yellow trap detection module includes machine readable instructions stored in the memory and executable by a processor.
4. A malfunction management method comprising:
monitoring a sequence of intersection phases determined by a controller; and
determining whether a yellow trap sequence has occurred within the sequence of intersection phases, wherein the yellow trap sequence comprises a first state followed by a second state, the first state corresponding to permissive left turns in both a first direction and a second, opposing direction, and the second state corresponding to a protected left turn in the first direction.
5. The method of claim 4 , further including storing configuration data including a list of one or more of the intersection phases and the relationship between the one or more intersection phases.
6. Non-transitory media bearing computer-readable software instructions configured to cause a processor to perform the steps of:
monitoring a sequence of intersection phases; and
determining whether a yellow trap sequence has occurred within the sequence of intersection phases, wherein the yellow trap sequence comprises a first state followed by a second state, the first state corresponding to permissive left turns in both a first direction and a second, opposing direction, and the second state corresponding to a protected left turn in the first direction.
7. The non-transitory media of claim 6 , wherein the software instructions further cause the processor to store, in a memory, configuration data including a list of one or more of the intersection phases and the relationship between the one or more intersection phases.