An intelligent electronic shoe system, comprising: an upper configured to attach to a foot of a user; a sole structure attached to the upper and configured to support thereon the foot of the user, the sole structure defining a ground-engaging surface; a collision threat warning system mounted to the sole structure and/or the upper and configured to generate visible, audible and/or tactile outputs in response to command signals; a detection tag configured to receive a prompt signal from a transmitter-detector module and responsively transmit a response signal to the transmitter-detector module, a wireless communications device mounted to the sole structure and/or the upper and configured to wirelessly communicate with a remote computing node; and a footwear controller operatively connected to the wireless communications device and the collision threat warning system, the footwear controller being configured to: receive, from the remote computing node via the wireless communications device, a pedestrian collision warning signal generated responsive to the response signal; and transmit, in response to the received pedestrian collision warning signal, a command signal to the collision threat warning system to generate a predetermined visible, audible and/or tactile alert configured to warn the user of an impending collision with a motor vehicle, characterized in that the detection tag includes an electroactive polymer sensor with a dielectric EAP element mounted to the sole structure and/or the upper, wherein the prompt signal is an electrical field that induces a physical state change in the dielectric EAP element, and the response signal is generated by reversing the physical state change of the dielectric EAP element. an upper configured to attach to a foot of a user; a sole structure attached to the upper and configured to support thereon the foot of the user, the sole structure defining a ground-engaging surface; a collision threat warning system mounted to the sole structure and/or the upper and configured to generate visible, audible and/or tactile outputs in response to command signals; a detection tag configured to receive a prompt signal from a transmitter-detector module and responsively transmit a response signal to the transmitter-detector module, a wireless communications device mounted to the sole structure and/or the upper and configured to wirelessly communicate with a remote computing node; and a footwear controller operatively connected to the wireless communications device and the collision threat warning system, the footwear controller being configured to: receive, from the remote computing node via the wireless communications device, a pedestrian collision warning signal generated responsive to the response signal; and transmit, in response to the received pedestrian collision warning signal, a command signal to the collision threat warning system to generate a predetermined visible, audible and/or tactile alert configured to warn the user of an impending collision with a motor vehicle, characterized in that the detection tag includes an electroactive polymer sensor with a dielectric EAP element mounted to the sole structure and/or the upper, wherein the prompt signal is an electrical field that induces a physical state change in the dielectric EAP element, and the response signal is generated by reversing the physical state change of the dielectric EAP element. receive, from the remote computing node via the wireless communications device, a pedestrian collision warning signal generated responsive to the response signal; and transmit, in response to the received pedestrian collision warning signal, a command signal to the collision threat warning system to generate a predetermined visible, audible and/or tactile alert configured to warn the user of an impending collision with a motor vehicle, characterized in that the detection tag includes an electroactive polymer sensor with a dielectric EAP element mounted to the sole structure and/or the upper, wherein the prompt signal is an electrical field that induces a physical state change in the dielectric EAP element, and the response signal is generated by reversing the physical state change of the dielectric EAP element.