Adaptive stop sign and intersection traffic control system

An intersection traffic control system comprising:

• a plurality of adaptive stop signs installed at an intersection;
• each adaptive stop sign comprises an octagonal stop sign plate, at least one multicolor light indicator, wherein, the adaptive stop sign is connected to a traffic signal control system (TSCS) and/or a signal receiver and controller (SRC), wherein, in an active state the plurality of adaptive stop signs work as traffic control signals and the TSCS and, SRCs switch on the at least one light indicator according to a traffic control signal, and wherein, in an inactive state the adaptive stop signs work as normal stop signs and the TSCS and, SRCs switch off the at least one light indicator and only the word STOP is visible on the plurality of adaptive stop signs;
• wherein the TSCS of one of the plurality of adaptive stop signs works as a master TSCS for the intersection traffic control system and the SRCs of all other of the plurality of adaptive stop signs works as slave SRCs for the intersection traffic control system;
• wherein the master TSCS controls an ON or OFF state, the active or inactive state, timing, color and sequence of the at least one multicolor light indicator, and flashing or blinking of the lights for the plurality of adaptive stop signs;
• wherein the TSCS and SRCs includes a transmitter and a receiver;
• wherein the master TSCS has a time of a day clock to switch the plurality of adaptive stop signs “ON” or “OFF”, “ACTIVE” or “INACTIVE” at specific times of the day;
• wherein, in the active state the master TSCS transmits a signal code to implement a change of signal to the SRCs and the SRCs transmits confirmation signal codes to the master TSCS to acknowledge and verify a light change;
• wherein, in case the master TSCS does not receive the confirmation signal codes from the slave SRCs or receivers a slave SRC malfunction signal code, the master TSCS initiates a shut-down sequence, sending the plurality of adaptive stop signs to work in the inactive Mode;
• wherein, the at least one multicolor light indicator includes a plurality of multicolor light emitting diode (LED) lights;
• wherein, the plurality of multicolor LED lights includes a multicolor LED light strip;
• wherein the word STOP is embedded in the center portion between the vertical sides of the adaptive stop sign;
• further comprising a remote control unit for testing and verifying operations of the intersection control system remotely, and to manually control the plurality of multicolor light indicators by police or emergency vehicles and/or personnel.

An adaptive stop sign, comprising:

• an octagonal stop sign plate with at least one multicolor light indicator;
• a signal receiver and controller (SRC) to control a state of the adaptive stop sign including an on state, an off state, an active state or an inactive state, and the at least one multicolor light indicator;
• wherein, in the active state, the adaptive stop sign works as a traffic control signal and the SRC switches on the at least one multicolor light indicator according to a traffic control signal;
• wherein in the inactive state the adaptive stop sign works as a normal stop sign and the SRC switches off the at least one multicolor light indicator, and only a word STOP is visible;
• wherein the at least one multicolor light indicator includes a combination of single color LED lights including red, yellow and green LED lights, a combination of a dual color LED light and a single color LED light, or a triple color LED light configured to change colors between red, yellow and green;
• wherein the SRC is attached to a rear of the octagonal stop sign plate or is located remotely;
• wherein the SRC is configured to activate the at least one multicolor LED light indicator in a proper color, sequence and time to control traffic flow through an intersection;
• wherein the SRC comprises a CPU (Central Processing Unit), a time of day clock to start or stop the traffic control signal, a real time clock to determine the time, a color and sequence of the LED lights;
• wherein the SRC is configured to change the multicolor LED light indicator from GREEN to YELLOW to RED, and then to GREEN to continue a cycle;
• wherein the SRC comprises a transmitter-receiver to receive traffic control signal codes from a traffic signal control system (TSCS) and transmit verification of a traffic control signal change to the TSCS.