A method for providing an Advanced Pedestrian Assistance System to protect at least one pedestrian preoccupied with at least one smartphone, comprising steps of: (a) the smartphone instructing at least one locating unit to acquire 1-st information including at least part of location information and velocity information of the pedestrian and location information and velocity information of the smartphone, by referring to at least part of information acquired from at least one High Definition Map, at least one GPS, and at least one acceleration sensor and at least one gyroscope sensor included in at least one IMU; (b) the smartphone instructing at least one detecting unit to acquire 2-nd information including each of hazard statuses of each of hazardous areas near the pedestrian and location information and velocity information of hazardous objects, by referring to at least part of images acquired by one or more phone cameras linked with the smartphone and the 1-st information; and (c) the smartphone instructing at least one control unit to calculate at least one degree of pedestrian safety of the pedestrian by referring to the 1-st information and the 2-nd information, and to transmit a hazard alert to the pedestrian via the smartphone, characterized in that: at the step of (c), the smartphone instructs the control unit to determine the degree of pedestrian safety by additionally referring to 3-rd information, and wherein the 3-rd information includes information on surroundings of the pedestrian generated by the smartphone instructing the control unit to communicate with at least part of connected devices near the pedestrian that include at least one vehicle, at least one CCTV, at least one another smartphone of at least one another pedestrian, and at least one traffic signal all of which are near the pedestrian, wherein at least part of the connected devices are at least part of the hazardous objects, wherein the 3-rd information includes at least part of (3_1)-st information and (3_2)-nd information, wherein the (3_1)-st information includes location information and velocity information of a 1-st specific hazardous object included in both of at least one virtual viewing frustum of the phone cameras linked with the smartphone and at least one virtual viewing frustum of at least one external camera linked with the connected devices, wherein the (3_2)-nd information includes location information and velocity information of a 2-nd specific hazardous object excluded from the virtual viewing frustum of the phone cameras linked with the smartphone but included in the virtual viewing frustum of the external camera linked with the connected devices, and wherein the smartphone instructs the control unit to verify a reliability of the 2-nd information by referring to the (3_1)-st information, and acquire information on at least one undetected hazardous object by referring to the (3_2)-nd information. (a) the smartphone instructing at least one locating unit to acquire 1-st information including at least part of location information and velocity information of the pedestrian and location information and velocity information of the smartphone, by referring to at least part of information acquired from at least one High Definition Map, at least one GPS, and at least one acceleration sensor and at least one gyroscope sensor included in at least one IMU; (b) the smartphone instructing at least one detecting unit to acquire 2-nd information including each of hazard statuses of each of hazardous areas near the pedestrian and location information and velocity information of hazardous objects, by referring to at least part of images acquired by one or more phone cameras linked with the smartphone and the 1-st information; and (c) the smartphone instructing at least one control unit to calculate at least one degree of pedestrian safety of the pedestrian by referring to the 1-st information and the 2-nd information, and to transmit a hazard alert to the pedestrian via the smartphone, at the step of (c), the smartphone instructs the control unit to determine the degree of pedestrian safety by additionally referring to 3-rd information, and wherein the 3-rd information includes information on surroundings of the pedestrian generated by the smartphone instructing the control unit to communicate with at least part of connected devices near the pedestrian that include at least one vehicle, at least one CCTV, at least one another smartphone of at least one another pedestrian, and at least one traffic signal all of which are near the pedestrian, wherein at least part of the connected devices are at least part of the hazardous objects, wherein the 3-rd information includes at least part of (3_1)-st information and (3_2)-nd information, wherein the (3_1)-st information includes location information and velocity information of a 1-st specific hazardous object included in both of at least one virtual viewing frustum of the phone cameras linked with the smartphone and at least one virtual viewing frustum of at least one external camera linked with the connected devices, wherein the (3_2)-nd information includes location information and velocity information of a 2-nd specific hazardous object excluded from the virtual viewing frustum of the phone cameras linked with the smartphone but included in the virtual viewing frustum of the external camera linked with the connected devices, and wherein the smartphone instructs the control unit to verify a reliability of the 2-nd information by referring to the (3_1)-st information, and acquire information on at least one undetected hazardous object by referring to the (3_2)-nd information.