Abstract: The invention relates to a method for determining a position of a rail vehicle, moving on a track, by means of an optical measuring system comprising a stereo camera system and an evaluation device, wherein by means of the stereo camera system an image pair is recorded from a reference point in a lateral environment of the track and wherein by means of photogrammetry the position of the rail vehicle is determined in relation to the reference point. The position of the rail vehicle is additionally detected by means of a radio-based measuring system for real-time locating by means of anchor modules attached to the rail vehicle and by means of transponders attached to several reference points, wherein position data of the two measuring systems are compared by means of a central system unit. In this way, two independent measuring systems are used to generate position data.

Abstract: A railway collision protection and safety system has a vehicle device located on rail vehicles at a work zone, a personal protection unit located with rail workers at the work zone, and a dispatcher processor at a control center. An authority limit within the work zone may be determined by the dispatcher processor, and an authority exceeded signal is sent to the rail vehicle when the rail vehicle is determined to exceed the authority limit.

Abstract: A system and method for providing a proximity alert information form a locomotive directly to a device usable by wayside personnel or vehicles thereby alerting the personnel of an approaching locomotive. The proximity alert is facilitated by current PTC and ITCM messaging infrastructure, or is retrofittable to non-PTC equipped locomotives.

Abstract: A writing board holder adapted for use with various writing boards and writing implements, incorporating a design attractive to children for interactive play. The writing board holder comprises at least one support post with an attached writing board, and appendages which can be used with writing and erasing implements to draw on the board and clean the board.

Abstract: The flagpole having decorative sporting equipment section comprises a pole that incorporates a decorative section into its design. The decorative section is functional because it substitutes for a portion of the pole and provides elevation for a flag. The decorative section may be the topmost portion of the flagpole or it may divide the pole into an upper pole and a lower pole with the decorative section in the middle. The flagpole having decorative sporting equipment section may provide a path through the center of the flagpole for a portion of the halyard to travel. The decorative section may be designed to resemble a sporting object such as a lever rifle. A section of the rifle resembling a gun sight may comprise a light source to provide illumination for the flag at night.

Abstract: An adjustable mount for a light signal assembly may comprise a fixture and a mounting track. The fixture may be configured to be attached to the light signal assembly. The mounting track may be configured to allow the fixture to be adjustably positioned in a direction substantially parallel to a length of a cantilever or bridge and mounted to the mounting track.

Abstract: In a method of operating a system for announcing the presence of one or more individuals on or near a pathway to an operator of a vehicle traveling on the pathway, each of a number of data readers positioned along the pathway receives data input by the one or more individuals. In response to each data reader receiving the data input, a unique subset of a number of lamps, also positioned along the pathway, is caused to illuminate. The system includes a computer network that controls the operation of the lamps in response to the input of data.

Abstract: A safety system for providing early warning notifications to an authorized track worker performing official duties along a rail road network is disclosed herein. The safety system determines the position of the authorized worker and determines an estimated time to collision between the authorized track worker and an approaching rail vehicle. The result of the safety system is that the track worker has enough time and sufficiently accurate warning that will enable the track worker to move to a point of safety so as to remain unharmed by the approaching rail vehicle.

Abstract: A system for use by a railroad to warn railroad workers, track walker, railroad personnel and others of oncoming train(s) and to warn the train operator(s) of such train(s) of the presence of railroad workers, track walker railroad personnel, other train(s) and others on or near the railroad tracks, such system including at least one train transceiver for each train for sensing signals transmitted by at least one of a plurality of personal transmitter/receivers, one personal transmitter/receiver being worn by each of such railroad workers, track walker and railroad personnel, such train transceiver(s) to warn the train operator(s) of the presence of railroad workers, track walker, other train(s), and railroad personnel on or near the tracks when receiving signals from the personal transmitter/receivers, such personal transmitter/receivers receiving signals from the train transceiver(s) to warn the railroad workers, track walker and railroad personnel of oncoming train(s) with such warning signal activating ne

Abstract: A railway indicator device is provided for indicating a condition associated with a particular section of track of a railway. The device includes a post supported in the ground adjacent the railway track which pivotally supports a swing arm thereon for movement between a raised position extending vertically above the post and a lowered position extending horizontally across the railway track spaced above the ground. An indicator panel, for example a blue flag indicator is supported on the free end of the swing arm for pivotal movement therewith relative to the post. The pivoting swing arm permits the indicator panel to be readily retracted or deployed by a single operator while minimizing opportunity for the indicator panel to be lost or damaged as commonly occurs with conventional designs of indicators used on railways.

Abstract: A method and system of detecting obstacles on railroad lines. Sensors for observing the railroad line are arranged along the railroad line, and automatic evaluation takes place. One advantage of the invention is that the railroad lines are divided into given, known line sections, each of which is monitored by a respective sensor, whereby the evaluation process is simplified. If the sensors are designed as video cameras, for example, a comparison with still images may suffice for the evaluation. Furthermore, as the line sections re known, a simple masking technique can be used. Obstacles outside a set route to be monitored are masked out using suitable masks.

Abstract: A railroad maintenance-of-way personnel warning system and method therefor provides advanced detecting and warning of oncoming trains encroaching the construction area. Magnetometer sensors detect an oncoming train whereby a warning signal is transmitted to a receiver unit at the construction zone. Warning alarms including a flashing light and siren horn are thereby activated to indicate the imminent danger whereupon the construction personnel may take cautionary and evasive action in sufficient time to avoid mishap.

Abstract: A wayside signal for a railway includes a plurality of light emitting diodes housed in a housing. The light emitting diodes output indication signals. Further, the light emitting diodes are configured on a first circuit board which is thermally coupled to the housing. The housing may also include heat sink fins to dissipate heat generated by the light emitting diodes and associated driving circuitry for driving the light emitting diodes also contained within the housing. An additional light emitting diode may also be contained within the housing to point in an opposite direction than the indication signal light emitting diodes, which additional light emitting diode may be formed on a second circuit board with the driving circuitry. The additional light emitting diode provides an indication to anyone behind the wayside signal as to the indication of the wayside signal. The wayside signal is further optimized for thermal efficiency and to be sealed against the elements.

Abstract: A temporary sign holder utilizes a clamping member attachable to a rail to support a sign post in an operative location. The clamping member is formed with two hooked shaped members that are tightened around the base of the rail from opposing sides. One of the hooked members has a threaded rod extending through a sleeve on the other hooked member with a locking ring threaded onto the rod to provide a tightening arrangement. A horizontal member extends outwardly from the hook shaped members. This arrangement enables the hooked shaped members to be pressed inwardly towards each other towards the rail web to provide a heightened degree of clamping force capable of resisting vibrational and other forces that occur as a result of train passage. A lock prevents unauthorized loosening of the locking ring to create a tamper-proof structure.

Abstract: This invention, is a PROCESS, for creating a flashing red light at a railroad-highway grade crossing.This PROCESS is accomplished by the use of two units. The first unit houses a light that is capable of casting a very intense beam out ahead of the train. It also houses a means to oscillate this light from side to side (left and right) using a motor mechanism, like a heavy duty windshield wiper motor.The second unit is a round, red reflector that is capable of reflecting the light in both directions down the roadway that intersects the railway. This PROCESS is accomplished as the oscillating light beam strikes the red reflector for just a split second with each pass, creating the appearance of a flashing red light, which causes motorists, and others, to know that a train is approaching the grade crossing.The reflector is shaded from the sunlight, leaving it in relative darkness. This enable motorists to see the reflection (the flashing red light) even during daylight hours.

Abstract: A railroad maintenance-of-way personnel warning system and method therefor provides advanced detection and warning of oncoming trains encroaching the construction area. Magnetometer sensors detect an oncoming train whereby a waning signal is transmitted to a receiver unit at the construction zone. Warning alarms including a flashing light and siren horn are thereby activated to indicate the imminent danger such whereupon the construction personnel may take precautionary and evasive action in sufficient time to avoid mishap.

Abstract: A train warning system and method for warning personnel in proximity to railroad tracks of an approaching train includes a train sensor operable with the railroad tracks for detecting passage of a train over the railroad tracks at a given location. The train sensor generates a train sensor signal upon detecting passage of a train over the railroad tracks at the given location. A transmitter is operable with the train sensor for transmitting a warning signal upon receipt of the train sensor signal. A portable radio frequency (RF) receiver is carried by at least one of the personnel in proximity to the railroad tracks remote from the railroad tracks at the given location for receiving the warning signal transmitted by the transmitter. The portable RF receiver generates an alarm signal to notify the at least one of the personnel of the approaching train upon receipt of the warning signal.

Abstract: A track flag holder is disclosed for attachment to a railroad track in order to support flags designed to alert train operators. The track flag holder includes an adjustable clamp assembly, a flag assembly, and a flag. The adjustable clamp assembly includes a base member designed for passage beneath the track. A modified clevis and a latch pin are used to secure the adjustable clamp assembly to the track. The flag assembly is coupled to the adjustable clamp assembly and includes an arm to which the flag may be mounted. In preferred embodiments of the invention; a padlock or other appropriated security mechanism may be used to secure the track flag holder and deter vandalism.

Abstract: A railroad signaling device for conveying information to a train engineer comprises a pylon adapted to be secured to a cross tie of the railroad track at a location to be passed over by a train as the train moves down the track. The pylon has front and rear faces that bear indicia fabricated of a retroflective material to reflect the train's headlight back in the direction of the engineer. The pylon is located along the railroad track to be easily detectable by an engineer, especially in fog or inclement weather when the engineer's attention is focused down the track ahead.

Abstract: An apparatus for representing the state of a condition, the condition having a true state and a false state, the apparatus comprising an indicator having a recognizable feature indicative of the true state of the condition, a cover for covering the indicator and a support for removably supporting the indicator and cover on a surface. The apparatus includes a device for moving the indicator and the cover relative to each other such that the true state of the condition is represented by the indicator being uncovered and the false state of the condition is represented by the indicator being covered.

Abstract: The present invention provides a portable, temporary railroad signaling device which may be tenaciously secured onto a railroad rail and its use. The device includes an adjustable and fixed clamping mechanism for clasping onto a railroad rail placed therewithin, which mechanism when tightly drawn together mechanically biases and wedges the rail therebetween. The device advantageously includes a collapsible arm to mount and support a signaling unit thereupon an internal housing for stowing a signaling unit therewithin and a lock for locking the clamped device onto the rail to protect the device against unauthorized tampering.

Abstract: A triangular truss walkout cantilever for displaying railroad warning signals above the individual lanes of a road or highway at a railroad grade crossing is disclosed. The cantilever includes a cantilever arm attached to a vertical roadside mast. The cantilever arm has three parallel truss members that form a triangular cross section. These members are reinforced by a system of struts and braces. A catwalk allows a worker access to the warning signals for maintenance and no braces interfere with such access.

Abstract: A traffic crossing signal mast for railroad-highway grade crossings incorporates a sturdy cantilever arm extending over the highway and supporting a maintenance catwalk. A short, horizontal jury mast at the end of the cantilever arm is pivotable about its axis parallel to the highway direction through limited angular sectors of one-quarter turn clockwise and counterclockwise. A junction box assembly mounted at each end of the jury mast suspends a pair of warning flasher crossing signal lamps on each side of the catwalk aimed down the highway axis. Pivoting movement of the jury mast from its locked, detent position to a latched quarter-turned position raises one of each pair of signal lamps for initial cable connections, repairs or replacement of flashing lamp heads. A lockable clamping cam lever disengages the detent for jury mast rotation and re-engages it to secure the signal lamps in their aligned position for use.