Stop sign with traffic control features
OwnerMark Lamonchainventor
Life of this patent
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Abstract
Systems and methods for controlling traffic at an intersection are provided. A controller receives data from a vehicle detection device indicating a presence or non-presence of vehicles within a first area forward or adjacent to the stop sign. The controller receives data from a cross-traffic vehicle detection device indicating a presence or non-presence of vehicles within a second area rearward of the stop sign. Where data is received indicating the presence of at least one vehicle within the first area and the non-presence of any vehicles within the second area, the controller commands a traffic signaling device for the stop sign to temporarily cease providing the wait signal and instead provide the proceed signal.
Claims19
A traffic control system comprising:
- a stop sign;
- a traffic signaling device associated with the stop sign and configured to selectively provide a wait and a proceed signal;
- a vehicle detection device configured to monitor a first area forward or adjacent to the stop sign;
- a number of vehicle control systems, each located in one of the vehicles and configured to control movement of said one of said vehicles, wherein each of the number of vehicle control systems is in selective electronic communication with the controller;
- and
- a cross-traffic vehicle detection device configured to monitor a second area rearward of the stop sign;
- a controller configured to:
- receive data from the vehicle detection device indicating a presence or non-presence of vehicles within the first area;
- receive data from the cross-traffic vehicle detection device indicating a presence or non-presence of vehicles within the second area;
- where data is received indicating the presence of at least one vehicle within the first area and the non-presence of any vehicles within the second area, command the traffic signaling device to temporarily cease providing the wait signal;
- and
- upon receipt of the data indicating the presence of a first one of the vehicles within the first area, receipt of the data from the cross-traffic vehicle detection device indicating the presence of a second one of the vehicles in the second area, and receipt of data from a first one of the number of vehicle control systems provided at the first one of the vehicles indicating movement of the first one of the vehicles out of the first area and into the second area, indicate a cross-traffic hazard to the first one the number of vehicle control systems;
- wherein each of said the number of vehicle control systems are configured to operate said one of said vehicles to slow or cease movement into said second area following receipt of said cross-traffic hazard indication.
A system for controlling traffic at an intersection, said system comprising:
- a number of traffic control devices, each associated with one of a number of stop areas of said intersection and comprising:
- a stop sign;
- a traffic signaling device configured to selectively provide a wait and a proceed signal;
- a vehicle detection device configured to monitor a first area forward or adjacent to the stop sign;
- a cross-traffic vehicle detection device configured to monitor a second area rearward of the stop sign;
- and
- a controller in electronic communication with the traffic signaling device, the vehicle detection device, and the cross-traffic vehicle detection device, wherein said controller is configured to:
- cause said traffic signaling device to normally provide the wait signal;
- receive data from the vehicle detection device indicating a presence of non-presences of one or more vehicles within the first area;
- following receipt of data indicating at least one vehicle within the first area, cause the cross-traffic vehicle detection device to check the second area for a presence or non-presence of one or more vehicles;
- following receipt of data from the cross-traffic vehicle detection device indicating the non-presence of any vehicles within the second area, command the traffic signaling device to temporarily provide the proceed signal instead of the wait signal;
- each of said number of traffic control devices comprise a timing device;
- said controller is configured to electronically record an arrival time determined by said timing device following receipt of the data from the vehicle detection device indicating the vehicle within the first area;
- and
- said controller is configured to electronically transmit said arrival time to a command center remote from, but in electronic communication with, each of the number of traffic control devices;
- said command center is configured to:
- electronically receive said arrival times from said number of traffic control devices;
- determine an earliest one of said received arrival times;
- and
- command a respective one of said number of traffic control devices from which said earliest one of said received arrival times is received to temporarily set said traffic signaling device to proceed.
A method for controlling traffic at an intersection, said method comprising the steps of:
- commanding a traffic signaling device associated with a stop sign and associated with a stop area of the intersection to provide a wait signal;
- electronically receiving data from a vehicle detection device associated with the stop sign indicating a vehicle within a first area forward of the stop sign;
- electronically receiving data from a cross-traffic vehicle detection device associated with the stop sign indicating a presence of one or more vehicles within a second area rearward of the stop sign;
- commanding the traffic signaling device to continue providing the wait signal;
- electronically receiving data from the cross-traffic vehicle detection device indicating a non-presence of any vehicles within the second area;
- and
- commanding the traffic signaling device to temporarily provide a proceed signal;
- electronically receiving data from the vehicle detection device associated with the stop sign indicating a second vehicle within the first area forward of the stop sign;
- electronically receiving data from the cross-traffic vehicle detection device associated with the stop sign indicating a presence of a third vehicle within the second area rearward of the stop sign;
- commanding the traffic signaling device to provide the wait signal;
- electronically receiving data from a vehicle control system of the second vehicle indicating movement or intended movement of the second vehicle;
- and
- electronically commanding, by way of the vehicle control system of the second vehicle, to cease movement or not permit movement of the second vehicle.
Dependencies are inferred from the claim text.