There are disclosed methods for withdrawal of a bearing from a gate mechanism including a mechanism housing, a carrier assembly, and discrete fasteners. The carrier assembly includes a carrier housing and a carrier bearing. The carrier bearing is supported for rotation within the carrier housing. The carrier housing has a carrier support mating with a receiving bore of the mechanism housing. The carrier housing has multiple flange fasteners aligning with housing fasteners and housing surfaces of the mechanism housing when the carrier housing mates with the receiving bore. Multiple discrete fasteners are removed from a first group of the flange fasteners aligned with the housing fasteners. The carrier assembly is displaced from the mechanism housing in response to inserting the plurality of discrete fasteners to a second group of the plurality of flange fasteners aligned with the plurality of housing surfaces.

A crossing gate mechanism includes a gate mechanism enclosure defining an interior space, external wires located substantially outside the gate mechanism enclosure, and a terminal board positioned within the interior space of the gate mechanism enclosure. The external wires are connected to the terminal board. The terminal board is coupled to and swingable relative to the gate mechanism enclosure.

A crossing gate mechanism includes a gate mechanism enclosure defining an interior space, external wires located substantially outside the gate mechanism enclosure, and a terminal board positioned within the interior space of the gate mechanism enclosure. The external wires are connected to the terminal board. The terminal board is coupled to and swingable relative to the gate mechanism enclosure.

A crossing gate mechanism includes a swingable gate arm, a rotatable gate arm shaft fixed to the gate arm, and an electronic sensor assembly coupled to the gate arm shaft. Rotation of the gate arm shaft corresponds with swinging of the gate arm. The electronic sensor assembly senses an angular position of the gate arm shaft and transmits a position signal corresponding thereto. The electronic sensor assembly includes a driving element that is attached to the gate arm shaft to rotate therewith. the electronic sensor assembly also includes a driven element that is driven by the driving element such that rotation of the gate arm shaft causes the driven element to rotate. The electronic sensor assembly is configured to generate the position signal based on a position of the gate arm shaft.

A crossing gate mechanism includes a gate mechanism enclosure, electrical components inside the gate mechanism enclosure, and a controller inside the gate mechanism enclosure. The controller is connected to and configured to monitor and/or control the electrical components. The controller includes an operator panel for receiving input from a user. In addition, the controller has a user interface displayed by the operator panel. The controller is operable to present information associated with the electrical components on the user interface.

An end-of-train device, a system, and a method for monitoring barrier gates are provided. The method includes receiving at least one image associated with a barrier gate from an imaging device mounted on a train. Further, the at least one image is analyzed to determine a current status of the barrier gate. The current status corresponds to a position associated with the barrier gate. Based on the current status of the barrier gate, an action to be performed is identified. Further, one or more instructions for performing the identified action are generated.

A gate retraction device is provided to return a crossing gate arm to a home position. The gate retraction device comprises a frame to hold a gate pivot pin that is configured to provide a bi-directional rotation of the crossing gate arm. The gate retraction device further comprises a main pivot assembly that receives the gate pivot pin on one end so as to enable rotation of the main pivot assembly in a horizontal plane. The main pivot assembly comprises a first side and a second side opposite of the first side and wherein the main pivot assembly further comprises a spring pin extending on the first side and the second side of the main pivot assembly. The gate retraction device further comprises a spring-loaded assembly trapped against the spring pin of the main pivot assembly as the main pivot assembly rotates.

A system (200) for monitoring a railroad grade crossing (100, 250) includes an illumination device (220, 230) for illuminating a section of a railroad grade crossing (100, 250), and a control device (240) in communication with the illumination device (220, 230). The illumination device (220, 230) is configured to obtain data of the section of the railroad grade crossing (100, 250) while illuminating the section, and the control device (240) is configured to receive and evaluate the data. Further, a method (600) for monitoring a railroad grade crossing (100, 250) is provided.

A method that can be implemented relatively easily and inexpensively for monitoring a hazard zone of a level crossing, divides a roadway into a first roadway section and a second roadway section. For this purpose, the method is carried out such that by use of a first radio module, first radio signals are emitted in a first detection region containing at least one part of the first roadway section. By use of a second radial module, second radio signals are emitted in a second detection region containing at least one part of the second roadway section. The hazard zone is monitored indirectly using an analysis which is based both on the first emitted radio signals as well as the second emitted radio signals and which relates to the detection regions.

A control system may be provided that may include one or more processors. The one or more processors may be configured to receive obstruction information related to a defined area from at least one optical sensor, determine an obstruction is in the defined area based on the obstruction information in response to actuation of a first safety device that is configured to prevent the obstruction from entering the defined area, and communicate an actuation signal to a second safety device to control movement of the second safety device based on the obstruction determined to be in the defined area.