Abstract: Systems and methods of verifying train integrity may include generating EOT operation information based on sensor data from one or more sensors located at the end of a train, monitoring train integrity by periodically determining if the EOT operation information correlates to HOT operation information in a head of the train associated with a status of one or more sensors in the head of the train within a predetermined range, generating an integrity notification based at least partially on monitoring the predetermined range between EOT operation information and HOT operation information, and communicating a notification of an integrity event to at least one of the following: an on-board computer, an EOT device, a remote server associated with a specified entity, or any combination thereof.

Abstract: A system and method of dynamic train control for restricting the speed of a train in a railway on an approach to a visual barrier may include determining a stopping distance of a train to a visual barrier upon detecting a presence of the visual barrier in the railway, generating one or more stop target distances during an approach to the visual barrier based on the speed of the train on the approach to the visual barrier, and generating a warning for an operator to reduce the speed of the train based on the train moving within a warning distance associated with the stopping distance of the one or more stop target distances associated with the visual barrier.

Abstract: A switch reporting device including at least one display screen, a high resolution camera, a code reader, at least one memory and one or more processors, the switch reporting device configured to determine a position of an unmonitored switch in a railway by capturing an image of one or more portions associated with the unmonitored switch, generating switch position data based on the image of one or more portions associated with the unmonitored switch, and updating a switch position record for the unmonitored switch with the switch position data. The switch reporting device includes one or more mobile computers or an EOT device for monitoring and reporting switch position data for an unmonitored switch.

Abstract: A switch locking system and method of an authorized locomotive for safely traversing a switch in a railway including sending a lock command from a computer onboard the authorized locomotive to a switch controller associated with the switch; determining if a lock confirmation from the switch controller is received by the computer onboard the authorized locomotive; and safely traversing the switch upon receipt of the lock confirmation. The switch locking system and method may include sending an unlock command from a computer onboard the authorized locomotive to a switch controller after the train clears the switch.

Abstract: A system may include a controller with one or more processors. The controller may determine the wheel size of a wheel of a vehicle during a trip. The one or more processors may communicate a message associated with the wheel size to an off-board device when the wheel size is below a threshold size.

Abstract: In a method of train deceleration, a train computer: (a) causes brakes of the train to be set according to a target deceleration curve, profile, or braking model estimated to decelerate the train from a present speed at a present location to a target speed at a target location; (b) during deceleration of the train according to the target deceleration curve, profile, or braking model of step (a), determines an actual deceleration curve of the train; (c) in response to determining from the actual deceleration curve that the train will overshoot the target speed at the target location, determines another target deceleration curve, profile, or braking model estimated to decelerate the train to the target speed at the target location; and (d) causes the brakes of the train to be set according to the other target deceleration curve, profile or braking model of step (c).

Abstract: A system (e.g., a target activation system for a transportation network) includes one or more processors configured to be operably coupled onboard a vehicle system having one or more vehicles. The processor(s) are further configured to determine an estimated time of arrival of the vehicle system at a first target location associated with a forward route of the vehicle system, determine a gap time between when the vehicle system leaves the first target location and is estimated to arrive at a second target location, and, based at least in part on the estimated time of arrival, a dwell time of the vehicle system at the first target location, the gap time, an allowable speed or acceleration of the vehicle system, and a designated warning time, generate an activation message configured to control at least one device associated with the second target location.

Abstract: A system is provided that include at least one positioning system that can detect a location or position of a vehicle or a portion of a vehicle group that includes the vehicle, at least one sensor positioned on or associated with the vehicle that can generate sensor data of a determined parameter or condition, and a controller in communication with the sensor and the positioning system. The controller can determine that a hazard event has occurred based at least partially on sensor data, and can communicate a hazard event notification based at least in part on the location data and the sensor data to a remote server.

Abstract: A controller is provided that can receive or determine at least one first location associated with at least a first vehicle belonging to a vehicle group; receive or determine at least one second location associated with at least a second vehicle; and determine a route or lane from a plurality of possible routes or lanes on which the vehicle group is located based at least partly on the at least one first location and on the at least one second location.

Abstract: A vehicle management system communicates with monitor devices coupled with a path control device at an intersection between route segments. The path control device switches positions to connect different combinations of the route segments. The system receives signals from the monitor devices to determine which of the route segments are coupled with each other and receives an authority signal from a travel authority system that indicates which of the route segments that the vehicle is authorized to travel. The system directs the vehicle through the path control device responsive to a combination of: (a) receipt of the authority signal and (b) receipt of at least one of the monitor signals or failure to receive one or more of the monitor signals.

Abstract: An airbrake retention system and method for controlling air flow within an airbrake system, including the steps of: receiving, with a computer system comprising one or more processors, train control data associated with stopping on a grade; determining, with a computing system comprising one or more processors, an air retention controller within a railcar brake system to control air pressure release based on the train control data; communicating, with a computing system comprising one or more processors, an air control signal, the air control signal comprising information associated with a retainer valve of the braking assembly; and controlling, with a computing system comprising one or more processors, the retainer valve to adjust from a first state to a second state based on the air control signal to control air flow between the reservoir and the air braking assembly.

Abstract: A wireless target activation system for a train, the system including at least one computer programmed or configured to: receive at least one first target location and at least one second target location associated with a forward route of the train, wherein the at least one first target location is located before the at least one second target location on the forward route of the train; determine a gap time between when the leading edge of the train leaves the at least one first target location and is estimated to arrive at the at least one second target location based at least partially on a distance between the at least one first target location and the at least one second target location and a design speed; and based at least partially on the gap time, an allowable acceleration of the train, and a required warning time, generate an activation message configured to activate or cause the activation of at least one function associated with the at least one second target location.

Abstract: A switch alignment detection and enforcement system for a switch for a railway track having a normal leg and a reverse leg, the switch having a normal position for entry on the normal leg after the switch and a reverse position for entry on the reverse leg after the switch. The system includes: a first switch monitor device configured to generate at least one signal when the switch is in the normal position; a second switch monitor device configured to generate at least one signal when the switch is in the reverse position; and a train management computer configured or programmed to implement at least one train control action based on: a signal or absence thereof from the first switch monitor device and/or the second switch monitor device; and the content of a form-based authority. A switch alignment detection and enforcement arrangement and method are also disclosed.

Abstract: A system and method for determining a track location and/or a direction of travel of a train includes at least one computer programmed or configured to determine at least one of a track on which the train is located and a direction of travel of the train on the track based at least partly on at least one location associated with at least one locomotive or control car of the train and at least one other location associated with at least one other locomotive or control car of the train. The at least one computer can be programmed or configured to determine a track on which the train is located based at least partly on the at least one location associated with the at least one locomotive or control car of the train and at least one additional location associated with at least one additional locomotive or control car of at least one additional train.

Abstract: A method of determining geographic positions of a head of train (HOT) unit and an end of train (EOT) unit of a train includes receiving, by the HOT, first satellite radio position data and position correction data; determining, by the HOT, a first geographic location of the HOT based on the first satellite radio position data and the position correction data received by the HOT; receiving, by the EOT, second satellite radio position data; receiving, by the EOT from the HOT via a communication link, a copy of the position correction data received by the HOT; determining, by the EOT, a second geographic location of the EOT based on the second satellite radio position data and the position correction data received by the EOT; and receiving, by the HOT from the EOT, a copy of second geographic location of the EOT.

Abstract: A system, method, and apparatus for determining a location of a train as it travels on a track network is provided. The system includes an end-of-train device located on an end of the train, the end-of-train device comprising at least one signal receiving device configured to activate and receive transponder data from a plurality of passive transponders located throughout at least a portion of the track network. The system also includes at least one processor in communication with the at least one signal receiving device, the at least one processor programmed or configured to determine a location of the train based at least partially on at least a portion of the transponder data.

Abstract: A locomotive-to-wayside device communication system for a train having a locomotive travelling in a track network having wayside devices associated therewith. The system includes: an on-board communication device associated with the locomotive for transmitting and receiving data; and a wayside communication device associated with a wayside device, wherein the wayside communication device is programmed or configured to transmit data at or over (a) at least one power level, (b) at least one reporting interval, (c) at least one frequency, (d) at least one communication protocol, or any combination thereof. A wayside communication device and a locomotive-to-wayside device communication method are also disclosed.

Abstract: A system and method for determining a track location and/or a direction of travel of a train includes at least one computer programmed or configured to determine at least one of a track on which the train is located and a direction of travel of the train on the track based at least partly on at least one location associated with at least one locomotive or control car of the train and at least one other location associated with at least one other locomotive or control car of the train. The at least one computer can be programmed or configured to determine a track on which the train is located based at least partly on the at least one location associated with the at least one locomotive or control car of the train and at least one additional location associated with at least one additional locomotive or control car of at least one additional train.

Abstract: Provided is a computer-implemented method for verifying electronic work zone instructions with an on-board system of a train. The method includes receiving at least one electronic work zone instruction message from an employee-in-charge device, generating at least one visual instruction diagram based at least partially on the electronic work zone instruction message, transmitting the at least one visual instruction diagram from the on-board system of the train to the employee-in-charge device, receiving a verification of the at least one visual instruction diagram from the employee-in-charge device, and enforcing at least one work zone instruction parameter of the electronic work zone instruction message by the on-board system of the train in response to receiving the verification. A system and computer program product are also provided.

Abstract: A computer-implemented method for a plurality of trains, at least one of which is operating at a restricted speed, the method including: (a) transmitting, by at least one on-board computer of at least one train to at least one remote server, train location data; (b) requesting, by the at least one on-board computer from the at least one remote server, office polling data; (c) generating at least one poll registration message based at least partially on the office polling data; (d) based at least partially on the office polling data and/or the poll registration message, determining proximity of the at least one train to at least one subdivision; and (e) based at least partially on at least one of the following: train location data, office polling data, the poll registration message, or any combination thereof, transmitting, by the at least one remote server to at least one on-board computer of at least one train, train location data comprising location or position data related to at least one other train.