Patent Publication Number: US-2023152119-A1

Title: System for guiding evacuation at a time of a disaster, method for guiding evacuation at a time of a disaster, and non-transitory computer-readable medium

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority under 35 USC 119 from Japanese Patent Application No. 2021-185026, filed on Nov. 12, 2021, the disclosure of which is incorporated by reference herein. 
     BACKGROUND 
     Technical Field 
     The present disclosure relates to a system for guiding evacuation at a time of a disaster, a method for guiding evacuation at a time of a disaster, and a non-transitory computer-readable medium storing a program. 
     Related Art 
     Japanese Patent Application Laid-Open (JP-A) No. 2009-122004 discloses a navigation system that sets a route to an emergency shelter at the time when a situation requiring emergency evacuation arises in a geographical region in which a vehicle is traveling. 
     In the navigation system of JP-A No. 2009-122004, there is room for improvement in setting the traveling route to an emergency shelter that is suitable for the occupant of the vehicle. 
     SUMMARY 
     The present disclosure provides a system for guiding evacuation at a time of a disaster, a method for guiding evacuation at a time of a disaster, and a non-transitory computer-readable medium storing a program, by which an occupant of a vehicle may set a destination and a traveling route to the destination that are suitable for him/her. 
     A first aspect of the present disclosure is a system for guiding evacuation at a time of a disaster, including: a memory; a wireless communicator that is installed at a vehicle and that is able to receive information relating to occurrence of a disaster from an external communication device; a display that is installed at the vehicle and that is able to display information; a notification device that is installed at the vehicle and that is able to notify an occupant of the vehicle of information; and a processor coupled to the memory, the processor is configured to: in response to information expressing that a disaster has occurred being received from the wireless communicator, propose a traveling route to a destination of the vehicle, and cause the display to display the destination and the traveling route, and cause the notification device to notify the vehicle occupant of information relating to a status of crowding of at least one of the destination and the traveling route. 
     When information expressing that a disaster has occurred is received from the wireless communicator, the processor of the system for guiding evacuation at a time of a disaster of a first aspect of the present disclosure proposes a traveling route to a destination of the vehicle, and causes the display to display the destination and the traveling route. Moreover, the processor causes the notification device to notify the vehicle occupant of information relating to the status of crowding of at least one of the proposed destination and traveling route. Therefore, on the basis of information from the display, the vehicle occupant recognizes the proposed destination and traveling route, and, on the basis of the information from the notification device, the vehicle occupant can recognize the statuses of crowding of the destination and the traveling route. Accordingly, the vehicle occupant may set a destination and a traveling route that are suitable for him/her. 
     In a second aspect of the present disclosure, in the above-described first aspect, the notification device may be the display. 
     In the second aspect of the present disclosure, on the basis of the information displayed on the display, the vehicle occupant may grasp the destination and the traveling route, and the status of crowding of at least one of the destination and the traveling route. 
     In a third aspect of the present disclosure, in the above-described first or second aspect, the processor may be configured to propose a plurality of destinations and a plurality of traveling routes. 
     In the third aspect of the present disclosure, the processor may propose plural destinations and traveling routes. Therefore, the vehicle occupant may, upon understanding the statuses of crowding, set a destination and a traveling route that are suitable for him/her from among plural destinations and traveling routes. 
     A fourth aspect of the present disclosure, tin he system of any of the above-described aspects, may further include: an external server that communicates wirelessly with another vehicle, wherein the processor may be configured to: cause vehicle information, which is at least one of sensor information acquired by a sensor provided at the other vehicle or operation information of a movable device provided at the other vehicle, to be transmitted by the wireless communicator to the external server by wireless communication, and cause the notification device to notify the vehicle occupant of weather related information of a periphery of the another vehicle that is estimated on the basis of the vehicle information received by the external server. 
     In the fourth aspect of the present disclosure, vehicle information of another vehicle is transmitted to an external server by the wireless communicator. Moreover, the notification device notifies the vehicle occupant of weather related information of the periphery of the another vehicle that is estimated on the basis of the vehicle information received by the external server. Therefore, the vehicle occupant can set the destination and traveling route that are suitable for him/her, on the basis of the weather related information reported by the notification device. 
     In a fifth aspect of the present disclosure, in the above-described fourth aspect, the sensor information may include at least one of image information acquired by a camera provided at the vehicle or information relating to slip ratios of wheels of the vehicle that is acquired on the basis of detected values of wheel speed sensors, and the operation information may include at least one of operation information of a wiper device provided at the vehicle or operation information of an anti-lock brake system provided at the vehicle. 
     In the fifth aspect of the present disclosure, the weather related information is estimated on the basis of at least one of image information acquired by the camera, information relating to the slip ratios of the wheels acquired on the basis of detected values of wheel speed sensors, operation information of the wiper device, and operation information of the anti-lock brake system. Therefore, the weather related information is highly accurate. 
     In a sixth aspect of the present disclosure, in the above-described aspects, the processor may be configured to, after the destination and the traveling route have been proposed, newly propose the destination and the traveling route on the basis of information relating to occurrence of a disaster that the wireless communicator receives from the external communication device. 
     In the sixth aspect of the present disclosure, the processor may, after the destination and the traveling route have been proposed, newly propose a destination and a traveling route on the basis of information relating to the occurrence of a disaster that the wireless communicator receives from the external communication device. Therefore, the vehicle occupant may set a destination and a traveling route that are suitable for him/her, on the basis of the latest disaster information. 
     A seventh aspect of the present disclosure is a method for guiding evacuation at a time of a disaster, wherein a processor: proposes a traveling route to a destination of a vehicle in response to a wireless communicator installed in the vehicle receiving information relating to occurrence of a disaster from an external communication device; causes a display installed in the vehicle to display the destination and the traveling route; and causes a notification device installed in the vehicle to notify an occupant of the vehicle of information relating to a status of crowding of at least one of the destination and the traveling route. 
     An eighth aspect of the present disclosure is a non-transitory computer-readable medium on which is recorded a program that is executable by a processor to perform processing that includes: in response to a wireless communicator installed at a vehicle receiving information relating to occurrence of a disaster from an external communication device, proposing a traveling route to a destination of the vehicle, and causing a display installed at the vehicle to display the destination and the traveling route, and causing a notification device installed at the vehicle to notify an occupant of the vehicle of information relating to a status of crowding of at least one of the destination and the traveling route. 
     In accordance with the above-described aspects, in the system for guiding evacuation at a time of a disaster, the method for guiding evacuation at a time of a disaster, and the program to the present disclosure, the occupant of a vehicle may set a destination and a traveling route to the destination that are suitable for him/her. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Exemplary embodiments will be described in detail based on the following figures, wherein: 
         FIG.  1    is a drawing illustrating a system for guiding evacuation at a time of a disaster relating to an exemplary embodiment; 
         FIG.  2    is a control block drawing of an ECU of a vehicle and an external server that are illustrated in  FIG.  1   ; 
         FIG.  3    is a functional block drawing of the ECU illustrated in  FIG.  2   ; 
         FIG.  4    is a functional block drawing of the external server illustrated in  FIG.  1   ; 
         FIG.  5    is a drawing illustrating a map image of a periphery of the vehicle that is displayed on a display of the vehicle; 
         FIG.  6    is a drawing illustrating the map image at the time when a traveling route is set; 
         FIG.  7    is a drawing illustrating the map image at the time when a new disaster occurs; 
         FIG.  8    is a drawing illustrating the map image at the time when a new traveling route is proposed; 
         FIG.  9    is a drawing illustrating the map image at the time when a traveling route is reset; 
         FIG.  10    is a flowchart illustrating processing executed by the external server; 
         FIG.  11    is a flowchart illustrating processing executed by the ECU; and 
         FIG.  12    is a flowchart illustrating processing executed by the ECU. 
     
    
    
     DETAILED DESCRIPTION 
     Exemplary embodiments of a system for guiding evacuation at a time of a disaster, a method for guiding evacuation at a time of a disaster, and a program relating to the present disclosure are described hereinafter with reference to the drawings. 
     As illustrated in  FIG.  1   , a system  10  for guiding evacuation at a time of a disaster of the present exemplary embodiment has a vehicle  20 , a vehicle  50  (hereinafter called another vehicle  50 ) that is other than the vehicle  20 , and an external server  30 . Although one another vehicle  50  is illustrated in  FIG.  1   , there are actually a plurality of the another vehicles  50 . 
     As illustrated in  FIG.  1   , the vehicle  20 , which can communicate data with the external server  30  via a network (e.g., the internet), has an ECU (Electronic Control Unit)  21 , a display (notification device)  22  having a touch panel, a speaker (notification device)  23 , a camera (sensor)  24 , a GPS (Global Positioning System) receiver  25 , wheel speed sensors (sensors)  26 , a brake device (movable member)  27 , and a wiper device (movable member)  28 . A vehicle ID is given to the vehicle  20 . The display  22 , the speaker  23 , the camera  24 , the GPS receiver  25 , the wheel speed sensors  26 , the brake device  27  and the wiper device  28  are connected to the ECU  21 . Note that, although not illustrated in  FIG.  1   , the another vehicle  50  also has the ECU  21 , the display  22 , the speaker  23 , the camera  24 , the GPS receiver  25 , the wheel speed sensors  26 , the brake device  27  and the wiper device  28 . Moreover, a vehicle ID is given to each of the another vehicles  50 . 
     As will be described later, the display  22  can display various images. The speaker  23  can output various sounds. The camera  24  can capture images of subjects positioned at the periphery of the vehicle  20 . The GPS receiver  25  acquires information relating to the position at which the vehicle  20  is traveling (hereinafter called “position information”) by receiving GPS signals transmitted from GPS satellites. The wheel speed sensors  26  detect the wheel speeds of the four wheels (not illustrated) of the vehicle  20 . The brake device  27  applies braking force to the four wheels when the brake pedal (not illustrated) is depressed. Moreover, the brake device  27  is a portion of an anti-lock brake system (hereinafter called ABS) that is installed in the vehicle  20 . The wiper device  28  moves reciprocatingly on the front windshield by the driving force of an actuator when an unillustrated wiper switch is operated so as to be turned on. 
     As illustrated in  FIG.  2   , the ECU  21  is configured to include a CPU (Central Processing Unit) (processor)  21 A, a ROM (Read Only Memory)  21 B, a RAM (Random Access Memory)  21 C, a storage  21 D, a wireless communication I/F (interface) (wireless communicator)  21 E, an internal communication I/F  21 F, and an input/output I/F  21 G. The CPU  21 A, the ROM  21 B, the RAM  21 C, the storage  21 D, the wireless communication I/F  21 E, the internal communication I/F  21 F and the input/output I/F  21 G are connected so as to be able to communicate with one another via internal bus  21 Z. The ECU  21  can acquire information relating to the time from a timer. The display  22 , the speaker  23 , the camera  24 , the GPS receiver  25 , the wheel speed sensors  26 , the brake device  27  and the wiper device  28  are connected to the ECU  21  (the input/output I/F  21 G). 
     The CPU  21 A is a central computing processing unit, and executes various programs and controls the respective sections. The CPU  21 A reads-out programs from the ROM  21 B or the storage  21 D, and executes the programs by using the RAM  21 C as a workspace. The CPU  21 A controls the respective configurations and carries out various computing processings in accordance with the programs recorded in the ROM  21 B or the storage  21 D. 
     The ROM  21 B stores various programs and various data. For example, plural applications (programs) are installed in the ROM  21 B. A navigation application for example is installed in the ROM  21 B. Namely, the vehicle  20  is equipped with a navigation system. The RAM  21 C temporarily stores programs and data as a workspace. The storage  21 D is configured by a storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive) or the like, and stores various programs and various data. For example, map data of the entire country in which the vehicle  20  is located is recorded in the storage  21 D. 
     The wireless communication I/F  21 E is an interface for communicating wirelessly with various equipment. For example, the wireless communication I/F  21 E can communicate wirelessly with the external server  30 . Communication standards such as Bluetooth, Wi-Fi, or the like are used at the wireless communication I/F  21 E. 
     The internal communication I/F  21 F is an interface for connection, via an external bus, with ECUs other than the ECU  21  that is provided at the vehicle  20 . 
     The input/output I/F  21 G is an interface for communication with various devices. For example, the input/output I/F  21 G can communicate with the display  22 , the speaker  23 , the camera  24 , the GPS receiver  25 , the wheel speed sensors  26 , the brake device  27  and the wiper device  28 . 
     An example of functional configurations of the ECU  21  is illustrated in a block drawing in  FIG.  3   . The ECU  21  has, as the functional configurations thereof, a display control section  211 , a speaker control section  212 , a navigation processing section  213 , a route setting section  214 , an information recognizing section  215 , a brake control section  216 , a wiper control section  217 , and a transmitting/receiving control section  218 . The display control section  211 , the speaker control section  212 , the navigation processing section  213 , the route setting section  214 , the information recognizing section  215 , the brake control section  216 , the wiper control section  217 , and the transmitting/receiving control section  218  are realized by the CPU  21 A reading-out a program that is stored in the ROM  21 B and executing the program. 
     The display control section  211  controls the display  22 . As will be described later, map images of the navigation system and the like are displayed on the display  22 . 
     The speaker control section  212  controls the speaker  23 . 
     The navigation processing section  213  executes navigation processing. For example, the navigation processing section  213  can execute the usual route-searching processing when a touch-operation is carried out at the display  22  (the touch panel) in a state in which a navigation application has been started. Namely, the navigation processing section  213  can execute searching for routes that are from the current position of the vehicle  20  to the destination inputted by the touch-operation of a vehicle occupant. Moreover, the navigation processing section  213  acquires traffic information that includes information relating to traffic signs, and speed limits of the roads, of the geographical region that includes the place where the vehicle  20  is located. The acquired information is displayed on the display  22  that is controlled by the display control section  211 . 
     Moreover, the navigation processing section  213  has at least the functions of the main control section, the emergency evacuation judging section, the emergency shelter specifying section, the route searching section, and the route guiding section of the computing processing section of JP-A No. 2009-122004. Namely, the functions of the navigation processing section  213  are known, and JP-A No. 2009-122004 is incorporated by reference into the present specification. Namely, when disaster information is included in the road traffic information received from the external server  30 , the navigation processing section  213  proposes a traveling route for guiding the vehicle  20  to a shelter (an emergency shelter) while avoiding the place where the disaster has occurred. Note that disasters in the present exemplary embodiment include, for example, earthquakes, landslides, floods, tsunamis, and tornados. At this time, the navigation processing section  213  can propose plural shelters (destinations) and traveling routes to the respective shelters. The proposed shelters and traveling routes to the respective shelters are displayed on the display  22  that is controlled by the display control section  211 . 
     When a vehicle occupant executes a route setting operation with respect to the display  22  (the touch panel), the route setting section  214  sets one of the proposed traveling routes as the traveling route on which the vehicle  20  will travel. The set traveling route is displayed on the display  22  that is controlled by the display control section  211 . 
     When the wireless communication I/F  21 E receives, from the external server  30 , disaster information of the geographical region in which the vehicle  20  is located, information relating to the statuses of crowding of shelters, information relating to the traffic congestion statuses of roads in that geographical region, and weather related information that is described later, the information recognizing section  215  recognizes these information. Hereinafter, the information relating to the statuses of crowding of shelters and the information relating to the traffic congestion statuses of the roads are collectively called “crowding information”. These information that have been recognized by the information recognizing section  215  are displayed on the display  22  that is controlled by the display control section  211 . 
     The brake control section  216  controls the brake device  27  when the brake pedal is depressed. Moreover, on the basis of information relating to the wheel speeds of the four wheels that are transmitted from the four wheel speed sensors  26 , the brake control section  216  computes the slip ratio (=(vehicle body speed−wheel speed)/vehicle body speed) of each wheel. Further, the brake control section  216  operates the ABS when the computed slip ratio exceeds a predetermined threshold value. 
     When the aforementioned wiper switch is operated so as to be turned on, the wiper control section  217  cause the aforementioned actuator to operate. Due thereto, the wiper device  28  operates. On the other hand, when the wiper switch is operated so as to be turned off, the wiper control section  217  stops the actuator. Due thereto, the wiper device  28  stops operating. 
     The transmitting/receiving control section  218  controls the wireless communication I/F  21 E and the internal communication I/F  21 F. For example, the transmitting/receiving control section  218  wirelessly transmits various information to the external server  30  via the wireless communication I/F  21 E, and causes the wireless communication I/F  21 E to receive various information that are wirelessly transmitted from the external server  30 . For example, the transmitting/receiving control section  218  wirelessly transmits vehicle information of the vehicle  20  (the another vehicle  50 ) to the external server  30 . The vehicle information of the present exemplary embodiment includes image data (image information) acquired by the camera  24  of the vehicle  20  (the another vehicle  50 ), position information of the vehicle  20  (the another vehicle  50 ) acquired by the GPS receiver  25 , slip ratio information acquired by the brake control section  216  on the basis of the detected values of the wheel speed sensors  26 , operation information of the ABS acquired by the brake control section  216 , and operation information of the wiper device  28  acquired by the wiper control section  217 . Note that the image data (image information) and slip ratio information are “sensor information”, and the operation information of the ABS and the operation information of the wiper device  28  are “operation information”. 
     As illustrated in  FIG.  2   , the external server  30  illustrated in  FIG.  1    is configured to include, as the hardware configurations thereof, a CPU (processor)  30 A, a ROM  30 B, a RAM  30 C, a storage  30 D, a wireless communication I/F  30 E, an internal communication I/F  30 F and an input/output I/F  30 G. The CPU  30 A, the ROM  30 B, the RAM  30 C, the storage  30 D, the wireless communication I/F  30 E, the internal communication I/F  30 F and the input/output I/F  30 G are connected so as to be able to communicate with one another via an internal bus  30 Z. The external server  30  can acquire information relating to the time from a timer. 
     An example of the functional configurations of the hardware of the external server  30  are illustrated in a block drawing in  FIG.  4   . The hardware of the external server  30  has an estimating section  301  and a transmitting/receiving control section  302  as the functional configurations. The estimating section  301  and the transmitting/receiving control section  302  are realized by the CPU  30 A reading-out a program that is stored in the ROM  30 B and executing the program. 
     The sensor information and the operation information of the vehicle  20  and the another vehicle  50  are, while associated with the position information and the ID information of the vehicle  20  and the another vehicle  50 , wirelessly transmitted from the vehicle  20  and the another vehicle  50  to the external server  30 . On the basis of the sensor information and the operation information of the vehicle  20  and the another vehicle  50 , the estimating section  301  estimates weather related information of the respective geographical regions in which the vehicle  20  and the another vehicle  50  are located. For example, when information, which expresses that the wiper device  28  has been operated continuously for a predetermined time period or more by the wiper control section  217 , is transmitted from one of the another vehicles  50  via the external server  30  to the vehicle  20 , the estimating section  301  determines that it is raining in the geographical region in which that another vehicle  50  is located. Further, when information, which expresses that the ABS has been operated a predetermined number of times or more within a predetermined time period by the brake control section  216 , is transmitted from one of the another vehicles  50  via the external server  30  to the vehicle  20 , the estimating section  301  determines that slippage is occurring often on the road surfaces of the roads of the geographical region in which that another vehicle  50  is located. Further, when snow is included in the image data acquired by the camera  24  of one of the another vehicles  50 , the estimating section  301  determines that the road surfaces of the roads of the geographical region in which that another vehicle  50  is located are in states in which it is easy for slipping to occur. 
     The transmitting/receiving control section  302  controls the wireless communication I/F  30 E and the internal communication I/F  30 F. As will be described later, for example, the transmitting/receiving control section  302  wirelessly transmits various information to the vehicle  20  via the wireless communication I/F  30 E, and causes the wireless communication I/F  30 E to receive various information that are wirelessly transmitted from the vehicle  20 . Moreover, the transmitting/receiving control section  302  receives disaster information and crowding information of the geographical region in which the vehicle  20  is located, which are wirelessly transmitted from a server (not illustrated) of a local government that is managed by the local government of that geographical region. As described above, the crowding information includes information relating to statuses of crowding of shelters and information relating to congestion statuses of the roads. 
     Operation of the present exemplary embodiment are described next. 
     First, the flow of the processing that the external server  30  carries out is described by using the flowchart of  FIG.  10   . The external server  30  repeatedly executes the processing of the flowchart of  FIG.  10    each time a predetermined time period elapses. 
     First, in step S 10 , the transmitting/receiving control section  302  of the external server  30  determines whether or not the wireless communication I/F  30 E has received disaster information relating to the geographical region in which the vehicle  20  is located from the aforementioned server of the local government. 
     The external server  30  that has made an affirmative determination in step S 10  moves on to step S 11 , and the transmitting/receiving control section  302  causes the wireless communication I/F  30 E to wirelessly transmit the received disaster information. 
     The external server  30  that has finished the processing of step S 11  moves on to step S 12 , and determines whether or not the aforementioned vehicle information has been received from at least one of the vehicle  20  and the another vehicle  50 . 
     The external server  30  that has made an affirmative determination in step S 12  moves on to step S 13 , and the estimating section  301 , on the basis of the received vehicle information, estimates the weather related information of each geographical region in which at least one of the vehicle  20  and the another vehicle  50  is located. 
     The external server  30  that has finished the processing of step S 13  moves on to step S 14 , and the transmitting/receiving control section  302  causes the wireless communication I/F  30 E to wirelessly transmit the estimated weather related information. 
     The external server  30  that has finished the processing of step S 14  moves on to step S 15 , and determines whether or not crowding information of the geographical region in which the vehicle  20  is located has been received from the aforementioned server of the local government. 
     The external server  30  that has made an affirmative determination in step S 15  moves on to step S 16 , and the transmitting/receiving control section  302  causes the wireless communication I/F  30 E to wirelessly transmit the received crowding information. 
     When the processing of step S 16  ends, or when there is a negative determination in step S 10 , S 12  or S 15 , the external server  30  ends the processing of the flowchart of  FIG.  10    for the time being. 
     The flow of the processing that the ECU  21  carries out is described next by using the flowcharts of  FIG.  11    and  FIG.  12   . The flowchart of  FIG.  11    is described first. The ECU  21  repeatedly executes the processing of the flowchart of  FIG.  11    each time a predetermined time period elapses. 
     Note that, in the following description, it is assumed that the navigation application of the vehicle  20  has been started. Therefore, as illustrated in  FIG.  5    through  FIG.  9   , map image  221   m,  which shows geographical information of the geographical region in which the vehicle  20  is located, is being displayed on the display  22  of the vehicle  20 . Road images  221   m - 1  illustrating roads, and images  221   m - 2 A,  221   m - 2 B,  221   m - 2 C illustrating three shelters A, B, C respectively, are included in the map image  221   m  illustrated in  FIG.  5    through  FIG.  9   . Note that the circular mark denoted by reference numeral  2 O rp  in  FIG.  5    through  FIG.  9    is the current position of the vehicle  20  that is based on the position information of the vehicle  20 . 
     First, in step S 20 , the route setting section  214  of the ECU  21  determines whether or not the value of a setting flag is “0”. Note that the initial value of the setting flag is “0”. 
     The ECU  21  that has made an affirmative determination in step S 20  moves on to step S 21 , and the information recognizing section  215  determines whether or not the wireless communication I/F  21 E has received disaster information from the external server  30 . 
     The ECU  21  that has made an affirmative determination in step S 21  moves on to step S 22 , and the navigation processing section  213  proposes a traveling route for guiding the vehicle  20  to a shelter, while avoiding the place where a disaster has occurred. For example, as illustrated in  FIG.  5   , a case is assumed in which a tornado has occurred on a part of a road. The circular chain line shown in  FIG.  5    is tornado image  221   m -X. In this case, while taking into consideration the current position  20   rp  of the vehicle  20 , the position of the tornado and the positions of the shelters A, B, C, the navigation processing section  213  proposes shelters and traveling routes the vehicle  20  can be led to and led along, while avoiding the place where the tornado occurred. In this case, the navigation processing section  213  proposes three shelters (shelters A, B, C) and three traveling routes. Note that three traveling routes Rt 1 , Rt 2 , Rt 3  are shown by the imaginary lines in  FIG.  5   . Namely, in this case, the navigation processing section  213  determines that the vehicle  20  can be guided to the shelters A, B, C while avoiding the tornado. In this case, as illustrated in  FIG.  5   , a shelter selection image  221   m - 3  is displayed on the display  22 . On the basis of the situation of the occurrence of the disaster, the navigation processing section  213  can select, as the shelter, a predetermined place or facility that is included in the map image  221   m.  For example, when a tornado occurs, a tunnel can be selected as the shelter. Further, in a case in which a predetermined place or facility is designated as the shelter in the map image  221   m,  the navigation processing section  213  can select that place or facility as the shelter. Therefore, as illustrated in  FIG.  5   , the display  22  that is controlled by the display control section  211  displays the shelter selection image  221   m - 3 . 
     The ECU  21  that has finished the processing of step S 22  moves on to step S 23 , and the route setting section  214  sets the value of the setting flag to “0”. 
     The ECU  21  that has finished the processing of step S 23  moves on to step S 24 , and the information recognizing section  215  determines whether or not the wireless communication I/F  21 E has received, from the external server  30 , crowding information relating to the geographical region in which the vehicle  20  is located. 
     The ECU  21  that has made an affirmative determination in step S 24  moves on to step S 25 . Here, a case is assumed in which information expressing that “shelter A is crowded”, and information expressing that “there is a traffic jam in segment X of the roads shown in  FIG.  5    through  FIG.  9   ”, are included in the crowding information. In this case, in step S 25 , the display  22  that is controlled by the display control section  211  displays information display image  221   m - 4  that shows the crowding information and the weather related information. 
     The ECU  21  that has finished the processing of step S 25  moves on to step S 26 , and the information recognizing section  215  determines whether or not the wireless communication I/F  21 E has received, from the external server  30 , the weather related information relating to the geographical region in which the vehicle  20  is located. 
     The ECU  21  that has made an affirmative determination in step S 26  moves on to step S 27 . Here, a case is assumed in which information expressing that “slipping is occurring often in segment Y of the roads shown in  FIG.  5    through  FIG.  9   ” is included in the weather related information. In this case, this information is added to the information display image  221   m - 4 . 
     The ECU  21  that has finished the processing of step S 27  moves on to step S 28 , and the wireless communication I/F  21 E that is controlled by the transmitting/receiving control section  218  wirelessly transmits the vehicle information of the vehicle  20  to the external server  30 . 
     When the processing of step S 28  ends, or if the determination in step S 21  or S 29  is negative, the ECU  21  ends the processing of the flowchart of  FIG.  11    for the time being. Note that the processing of step S 29  is described later. 
     The flowchart of  FIG.  12    is described next. 
     First, in step S 30 , the route setting section  214  of the ECU  21  determines whether or not a proposal for a shelter and a traveling route has been given by the navigation processing section  213 . 
     The ECU  21  that has made an affirmative determination in step S 30  moves on to step S 31 . In step S 31 , the ECU  21  determines whether or not a vehicle occupant has carried out a touch-operation with respect to any one of A selection image  221   m - 3 A, B selection image  221   m - 3 B and C selection image  221   m - 3 C that are portions of the shelter selection image  221   m - 3 , within a predetermined time period from the point in time when the display of the shelter selection image  221   m - 3  started. As described above, shelter A is crowded, and there is a traffic jam in segment X. Moreover, slipping is occurring often in segment Y. Therefore, an occupant of the vehicle  20  himself/herself decides that the vehicle  20  should head to shelter B. Therefore, in step S 31 , the vehicle occupant carries out a touch-operation with respect to the B selection image  221   m - 3 B within the predetermined time period. Accordingly, the route setting section  214  of the ECU  21  makes an affirmative determination in step S 31 , and moves on to step S 32 . 
     The route setting section  214  of the ECU  21  that has moved on to step S 32  sets (decides upon) the traveling route to shelter B as the traveling route of the vehicle  20 . At this time, as shown by the solid line in  FIG.  6   , only the traveling route Rt 2  to shelter B is displayed on the display  22  as selected traveling route Rtd, and the traveling routes Rt 1 , Rt 3  to shelters A, C are deleted from the display  22 . Moreover, the shelter selection image  221   m - 3  is deleted from the display  22 . 
     The ECU  21  that has finished the processing of step S 32  moves on to step S 33 , and the route setting section  214  determines that the value of the setting flag is “1”. 
     Note that, in the case of a negative determination in step S 31 , the ECU  21  moves on to step S 34 . In this case, the display control section  211  deletes the three proposed traveling routes and the shelter selection image Im- 3  from the display  22 . 
     When the processings of steps S 33  and S 34  have ended, the ECU  21  ends the processing of the flowchart of  FIG.  12    for the time being. 
     Next, a case is assumed in which the vehicle  20 , which is traveling along the traveling route Rtd set in step S 32 , reaches the current position  20   rp  of  FIG.  7   , and a new tornado (the tornado image  221   m -X) occurs in a vicinity of shelter B as illustrated in  FIG.  7   . 
     In this case, the ECU  21  makes a negative determination in step S 20  of the flowchart of  FIG.  11   , and moves on to step S 29 . Moreover, in step S 29 , the information recognizing section  215  of the ECU  21  determines whether or not the wireless communication I/F  21 E has received new disaster information from the external server  30 . 
     The ECU  21  that has made an affirmative determination in step S 29  moves on to step S 22 , and the navigation processing section  213  proposes a traveling route for guiding the vehicle  20  to a shelter, while avoiding the place where the tornado has occurred. In this case, as illustrated in  FIG.  8   , the navigation processing system  213  proposes two shelters (shelters A, C) and two traveling routes Rt 4 , Rt 5 . Moreover, as illustrated in  FIG.  8   , the display  22  that is controlled by the display control section  211  displays the shelter selection image  221   m - 3 . 
     Thereafter, in a case in which the ECU  21  carries out the processing of the flowchart of  FIG.  12   , the ECU  21  makes an affirmative determination in step S 30 , and moves on to step S 31 . 
     As described above, shelter A is crowded, and there is a traffic jam in segment X. Moreover, a new tornado has arisen in the vicinity of shelter B. Therefore, even though slipping is occurring often in segment Y, the occupant of the vehicle  20  himself/herself decides that the vehicle  20  should head to shelter C. Therefore, in step S 31 , the vehicle occupant carries out a touch-operation with respect to the C selection image  221   m - 3 C within the predetermined time period. Accordingly, the ECU  21  makes an affirmative determination in step S 31 , and moves on to step S 32 . 
     The route setting section  214  of the ECU  21  that has moved on to step S 32  sets (decides upon) the traveling route Rt 5  to shelter C as the traveling route Rtd of the vehicle  20 . At this time, as shown by the solid line in  FIG.  9   , only the traveling route Rtd to shelter C is displayed on the display  22 , and the traveling route Rt 4  to shelter A is deleted from the display  22 . Moreover, the shelter selection image  221   m - 3  is deleted from the display  22 . 
     As described above, in the present exemplary embodiment, when information expressing that a disaster has occurred is received from the external server  30 , the ECU  21  of the vehicle  20  proposes a traveling route that guides the vehicle  20  to a shelter while avoiding the place where the disaster has occurred, and causes the display  22  to display the proposed shelter (destination) and traveling route. Moreover, the display  22  displays information relating to the status of crowding of the proposed shelter, and information (traffic information) relating to the congestion status of the traveling route. Therefore, on the basis of the information from the display  22 , the vehicle occupant recognizes the proposed shelter and traveling route, and, on the basis of the information from the display  22 , the vehicle occupant can recognize the statuses of crowding of the shelter and the traveling route. Accordingly, the vehicle occupant can set a shelter and a traveling route that are suitable for him/her. 
     Moreover, in the present exemplary embodiment, the ECU  21  can propose plural shelters (destinations) and traveling routes. Therefore, the vehicle occupant can, upon grasping the statuses of crowding of the proposed shelters and traveling routes, set (decide upon) a shelter and a traveling route that are suitable for him/her from among the plural shelters and traveling routes. 
     Moreover, in the present exemplary embodiment, vehicle information of the vehicle  20  and the another vehicle  50  are respectively transmitted from the vehicle  20  and the another vehicle  50  to the external server  30 , and, on the basis of the vehicle information, the external server  30  estimates the weather related information of the respective peripheries of the vehicle  20  and the another vehicle  50 . Moreover, the weather related information that is estimated by the external server  30  is transmitted from the external server  30  to the vehicle  20  (the another vehicle  50 ). Therefore, a vehicle occupant of the vehicle  20  (the another vehicle  50 ) can, on the basis of the weather related information reported by the display  22 , set a shelter and a traveling route that are suitable for him/her. 
     Moreover, in the present exemplary embodiment, when, after a shelter and a traveling route have been proposed from the ECU  21 , the vehicle  20  receives new disaster information from the external server  30 , the ECU  21  newly proposes a shelter and a traveling route. Therefore, the occupant of the vehicle  20  can set a shelter and a traveling route that are suitable for him/her, on the basis of the latest disaster information. 
     The system for guiding evacuation at a time of a disaster, the method for guiding evacuation at a time of a disaster, and the program relating to an exemplary embodiment have been described above. However, the designs of the system for guiding evacuation at a time of a disaster, the method for guiding evacuation at a time of a disaster, and the program can be changed appropriately within a scope that does not depart from the gist of the present disclosure. 
     For example, the external server  30  may transmit, to the vehicle  20 , information relating to the status of crowding of a proposed shelter or information relating to the congestion status of a proposed traveling route. 
     The notification device that notifies the vehicle occupant of the crowding information may be the speaker  23  that voice-outputs the crowding information. 
     A display (notification device) or a speaker (notification device) of a portable terminal (e.g., a smartphone) that can communicate wirelessly with the vehicle  20  may notify the vehicle occupant of the crowding information. Further, various images of the navigation system may be displayed on the display of a portable terminal in which a navigation application is installed. For example, the images shown in  FIG.  5    through  FIG.  9    may be displayed on the display of a portable terminal. 
     The above-described vehicle information may include only one of the sensor information and the operation information. Further, the sensor information may include only one of the image data (image information) and the slip ratio information. Further, the operation information may include only one of the operation information of the ABS and the operation information of the wiper device  28 . Moreover, the above-described vehicle information may be information that is different from the image data (image information), the slip ratio information, the operation information of the ABS, and the operation information of the wiper device  28 . 
     The ECU  21  of the vehicle  20  may have the same function as the estimating section  301 . In this case, the ECU  21  estimates the weather related information on the basis of the vehicle information received from the external server  30 . 
     The ECU  21  of the vehicle  20  may have the functions of the external server  30 . In this case, the external server  30  is unnecessary, and the vehicle  20  directly receives the information that is transmitted wirelessly from the server of a local government. 
     Instead of the GPS receiver  25 , the vehicle  20  may have a receiver that can receive information from satellites of a global navigation satellite system other than GPS (e.g., Galileo). 
     The ECU  21  may read-in map data from a web server, and display map images that are based on the map data on the display  22 .