181 |
Signal device |
US69995533 |
1933-11-27 |
US1999885A |
1935-04-30 |
TARLTON GEORGE L |
|
182 |
Annunciator |
US513592D |
|
US513592A |
1894-01-30 |
|
|
183 |
Annunciator |
US459615D |
|
US459615A |
1891-09-15 |
|
|
184 |
Charles e scribner |
US423494D |
|
US423494A |
1890-03-18 |
|
|
185 |
Improvement in electric annunciators |
US162057D |
|
US162057A |
1875-04-13 |
|
|
186 |
Automated traffic signal outage notification based on congestion without signal timing and phase information |
US15337301 |
2016-10-28 |
US10152881B2 |
2018-12-11 |
Omer Mubarek; Bruce Bernhardt; Jingwei Xu |
Systems and methods are provided for determining when a traffic signal associated with one or more paths through a road intersection is malfunctioning. Congestion prior to and subsequent to the road intersection is identified from a plurality of probe reports. A malfunctioning traffic signal is determined based on whether or not congestion is identified prior to and subsequent to the road intersection. |
187 |
Selectively controlling a self-driving vehicle's access to a roadway |
US15800214 |
2017-11-01 |
US10109195B2 |
2018-10-23 |
Michael S. Gordon; James R. Kozloski; Ashish Kundu; Peter K. Malkin; Clifford A. Pickover |
A processor-implemented method and/or computer program product selectively blocks a self-driving vehicle's access to a roadway. A vehicle interrogation hardware device receives an autonomous capability signal from an approaching self-driving vehicle. One or more processors compare the predefined roadway conditions to current roadway conditions of the access-controlled roadway. In response to the predefined roadway conditions matching the current roadway conditions of the access-controlled roadway within a predetermined range, the processor(s) determine whether the level of autonomous capability of the approaching self-driving vehicle is adequate to safely maneuver the approaching self-driving vehicle through the current roadway conditions of the access-controlled roadway. In response determining that the level of autonomous capability of the self-driving vehicle is not adequate to safely maneuver the approaching self-driving vehicle through the current roadway conditions of the access-controlled roadway, an automatic barricade controlling device positions an automatic barricade to block the approaching self-driving vehicle from accessing the access-controlled roadway. |
188 |
SYSTEMS AND METHODS FOR TRIGGERING TRAFFIC LIGHT SENSORS |
US15690158 |
2017-08-29 |
US20180253968A1 |
2018-09-06 |
Veera Ganesh Yalla |
Systems and methods can be used for triggering traffic light sensors. A vehicle can detect a condition indicative of a failure of a traffic light to transition (e.g., due to a failure to activate a traffic light sensor) and take action in response. In some examples, the condition can be detected based on the state of the traffic light facing the vehicle and/or the state of one or more traffic lights controlling traffic perpendicular to the vehicle. In some examples, the condition can be detected based on a duration of a state of the traffic lights. In response to detecting the condition, the vehicle can take action. In some examples, the autonomous driving system of the vehicle can automatically adjust the vehicle's position to trigger the sensor. In some examples, the vehicle can notify the driver of the condition. In some examples, the autonomous driving system of the vehicle can reroute the vehicle. |
189 |
Traffic news interface |
US15122720 |
2015-03-02 |
US10062280B2 |
2018-08-28 |
Vu Nguyen; Sergei Tuterov; Ka Wang Yee |
One or more techniques and/or systems are provided for providing a traffic news interface. For example, a traffic news provider component may query traffic camera data and/or traffic incident data to identify traffic cameras and/or traffic incidents along a route of a driver. The traffic cameras and/or the traffic incidents may be ranked based upon a safety metric, a travel time sensitivity metric, an alternative route selection metric, a driving behavior pattern, a driver mood, a distance of a traffic camera or traffic incident from a current user location, and/or other information used to determine how relevant information from the traffic camera and/or a traffic incident is to this particular driver. A subset of traffic cameras and/or traffic incidents may be selected for inclusion within a traffic news interface based upon camera relevancy rankings and/or incident relevancy rankings. |
190 |
EMERGENCY SAFETY MARKER SYSTEM |
US15910608 |
2018-03-02 |
US20180197410A1 |
2018-07-12 |
Joseph V. Stafford; Jan C. Lahtonen; Bruce S. Allen |
A method of warning a person of a first vehicle entering a defined boundary. An electronic safety marker is provided proximate the defined boundary. The electronic safety market has an electrical current source, a transmitter, an impact sensor and electrical circuitry interconnecting the electrical current source, the transmitter and the impact sensor. The electronic safety marker is deployed from a second vehicle proximate the defined boundary. A signal is transmitted with the transmitter after the electronic safety marker is deployed. A receiver is positioned a distance from the electronic safety marker. The receiver is capable of receiving the signal. The electronic safety marker is struck by first vehicle. Transmission of the signal is ceased when the electronic safety marker is struck by the first vehicle. An alarm is emitted from the receiver when the receiver ceases receiving the signal to warn the person of the first vehicle entering the defined boundary. |
191 |
COMPLIANCE METHOD AND SYSTEM FOR TRAFFIC CONTROL DEVICES |
US15568306 |
2016-04-22 |
US20180179712A1 |
2018-06-28 |
Dominic Mangialardi |
A sign comprising a substrate having a planar sign face and an opposing planar back face having peripheral side edges; a recessed portion formed within said substrate having an opening and a bottom, and side walls; a RFID tag assembly having a metal shielding sheet, said RFID tag assembly having a mounting substrate, a double-sided adhesive sheet with one side adhered to a metal shielding sheet and an opposing side adhered to said bottom of said recessed portion; a retroreflective sheeting having a double-sided pressure-sensitive adhesive sheeting for application over said RFID tag assembly to hermetically seal said RFID tag assembly within said recessed portion; a translucent vinyl backed material with primary indicia applied to said retroreflective sheeting; and a label with secondary indicia applied to said back face via label adhesive. |
192 |
METHOD FOR CONTROLLING TRAFFIC FLOW AND STRUCTURE THEREFOR |
US15730458 |
2017-10-11 |
US20180137755A1 |
2018-05-17 |
Scott Richard Evans |
In accordance with an embodiment, a method for controlling a traffic signal includes providing a malfunction management unit configured to generate a control signal and generating the control signal in response to a first signal from a first light source. The control signal is used to disable the first light source. In accordance with another embodiment, a traffic control system includes a malfunction management unit coupled to a first signal head. The traffic control system further includes a means to inhibit a signal that causes a first light source associated with the first signal head to flash. |
193 |
Automated Traffic Signal Outage Notification with SPaT Information |
US15341084 |
2016-11-02 |
US20180122227A1 |
2018-05-03 |
Omer Mubarek; Bruce Bernhardt; Jingwei XU |
A system and method are provided for determining malfunctioning traffic signals and lights. A traffic signal pattern is identified. Probe reports are received from a device. A path is generated including the road intersection for the device using location data in the two or more probe reports. The path is compared to a traffic signal. An abnormal crossing is determined from the comparison. A malfunction of the traffic signal is determined based on the abnormal crossing. |
194 |
Traffic-light cycle length estimation device |
US15114231 |
2015-01-29 |
US09947218B2 |
2018-04-17 |
Rie Murai |
For each of the traveling directions (traveling direction 1 to traveling direction 4) at an intersection, a traffic-light cycle length estimation device acquires a time at which a vehicle in the stopped state starts moving, calculates the time difference between neighboring start times, which have been acquired, as a start interval, and generates a histogram based on the number of samplings of start intervals. The device combines the generated histograms into a histogram for all direction to generate one histogram that represents the relation between the start intervals and the number of samplings and, based on this histogram, estimates the cycle length of the traffic light. If a particular value, one of the start intervals, corresponds to the maximum number of samplings, that particular value is estimated as the cycle length. |
195 |
Emergency safety marker systems |
US15207929 |
2016-07-12 |
US09940839B2 |
2018-04-10 |
Joseph V. Stafford; Jan C. Lahtonen; Bruce S. Allen |
An electronic lighted safety marker system used by emergency responders to warn motorists of the presence of an accident scene ahead on or beside the roadway is provided by the invention. Such safety marker can be deployed individually or in groups by the emergency responder along the perimeter of the accident scene and ideally ahead of it along the roadway to provide adequate warning to approaching motorists to avoid the accident scene. The safety marker contains a power source, a light panel, a protective shield for the light panel, and electronic circuitry for controlling the operation of the lights in a predetermined frequency or pattern, and may be automatically actuated and self-righting when it is dropped onto the ground or other hard surface. The safety marker further includes a transmitter for sending a signal to a receiver. Upon impact with the safety marker, the signal ceases and the receiver, equipped with an alarm, triggers either or both of an audible or visual signal. The safety marker can also contain an incursion warning system against incoming vehicles, an early warning radar transponder for sending a warning message to such incoming vehicles, a GPS location detector and transmitter for providing the location of the safety marker and its associated accident scene to a central dispatcher, and a gunshot sensor for detecting the occurrence of gunfire around the accident scene and its location to provide that information to the central dispatcher. |
196 |
Selectively controlling a self-driving vehicle's access to a roadway |
US15007335 |
2016-01-27 |
US09836973B2 |
2017-12-05 |
Michael S. Gordon; James R. Kozloski; Ashish Kundu; Peter K. Malkin; Clifford A. Pickover |
A processor-implemented method selectively controls a self-driving vehicle's access to a roadway. A vehicle interrogation hardware device receives an autonomous capability signal from an approaching self-driving vehicle. One or more processors compare predefined roadway conditions to current roadway conditions of the access-controlled roadway. In response to the predefined roadway conditions matching the current roadway conditions of the access-controlled roadway within a predetermined range, the processor(s) determine whether the level of autonomous capability of the approaching self-driving vehicle is adequate to safely maneuver the approaching self-driving vehicle through the current roadway conditions of the access-controlled roadway. In response to determining that the level of autonomous capability of the self-driving vehicle is adequate to safely maneuver the approaching self-driving vehicle through the current roadway conditions of the access-controlled roadway, an automatic barricade controlling device positions an automatic barricade to provide the approaching self-driving vehicle with access to the access-controlled roadway. |
197 |
SYSTEMS AND METHODS FOR MONITORING A PARKING SPACE |
US15163540 |
2016-05-24 |
US20170345304A1 |
2017-11-30 |
CHRISTOPHER L. OESTERLING; PAUL H. PEBBLES; PETER B. KOSAK |
Systems and methods are provided for monitoring a parking space with a sign. A sensor monitors the parking space and generate sensor data. A short-range transceiver receives a vehicle identification key and communicates over a short-range communication channel. A processor module is communicatively coupled with the sensor and the short-range transceiver. The processor module is configured to determine whether a vehicle in the parking space is an approved vehicle or an unapproved vehicle based on at least one of the sensor data and the vehicle identification key. The processor module generates a first notification when the the approved vehicle is in the parking space and a second notification when unapproved vehicle is in the parking space. The first and second notifications are transmitted by the short-range transceiver over the short-range communication channel. |
198 |
ESTIMATING TRANSIT QUEUE VOLUME USING PROBE RATIOS |
US15123043 |
2015-03-03 |
US20170076596A1 |
2017-03-16 |
Christopher L. Scofield; Dominic Jordan |
Transit through an area by a population of travelers may be evaluated by a number of techniques, and may be useful for routing, transit time estimation, and transit control. Some techniques involve the use of probes, such as individuals or vehicles that are tagged and trackable through the area. However, estimating properties such as transit queue volume through probe counts may be difficult, as the ratio of probes to the overall population may vary. Presented herein are techniques for estimating transit properties by evaluating transit queues to estimate the probe ratio for an area. Such techniques involve counting and tracking the probes in a transit queue to estimate a queue length change of the transit queue, and a probe rate change of probes entering and exiting the transit queue. This information may inform estimates of the probe ratio, and in turn regional transit estimates, such as transit queue volumes. |
199 |
TRAFFIC FLOW RATES |
US15123244 |
2015-03-03 |
US20170076594A1 |
2017-03-16 |
Christopher L. Scofield |
One or more techniques and/or systems are provided for determining a scaled flow rate of traffic for a road segment. For example, probe flow rate information is determined based upon locational information from one or more probe vehicles on a road segment (e.g., a flow rate of probe vehicles corresponding to a sum of probe vehicles identified from time stamped global positioning system coordinates provided by the probe vehicles). Satellite imagery of the road segment is analyzed to identify a count of vehicles on the road segment. Scale factor and offset information is estimated based upon the probe flow rate information and the count of vehicles. The scale factor and offset information is used to scale the probe flow rate information to determine a scaled flow rate that may be a relatively accurate flow rate of traffic, which may correspond to an inferred traffic volume along the road segment. |
200 |
Electronic traffic alert system |
US14010410 |
2013-08-26 |
US09564049B2 |
2017-02-07 |
Keyvan T. Diba |
A traffic control system includes a traffic display for installation near or adjacent existing street signage, which illuminates the signage and displays messages relating to traffic conditions including emergency conditions or the approach of an emergency vehicle. The traffic display is associated with a camera unit, which provides redundant confirmation with a central traffic control that the display is operating correctly, and displaying the message communicated to central traffic control or at its direction. The traffic control system advises drivers of changing traffic conditions in real time, provides control of the system from central traffic control, and allows central traffic control to monitor the functioning of the traffic display. |