Traffic safety support system
A traffic safety support system 1 includes mobile terminals that move with traffic participants in a target traffic area, and a coordination support device 6 capable of communicating with the mobile terminals. Each of the mobile terminals includes a notification device configured to make a risk notification in a hinting notification mode or in an analogue notification mode. The coordination support device includes a target area recognizer 60 configured to recognize recognition targets including the traffic participants and traffic environments and acquire recognition information, a predictor 62 configured to predict a risk in future of prediction targets that are a plurality of traffic participants in a monitoring area that is part of the target traffic area, and a risk notification specifier 64 configured to set an operation manner of risk notification for each of support targets on the basis of the recognition information and a prediction result.
1 . A traffic safety support system comprising:
on-board devices that move with traffic participants as mobile bodies in a target traffic area; and
a coordination support device capable of communicating with the on-board devices,
the traffic safety support system being for supporting safe movement of support targets that are traffic participants having the on-board devices, wherein
each of the on-board devices comprises a notification device configured to provide, to a driver of the mobile body that moves with the on-board device, a risk notification in a plurality of notification modes,
the coordination support device comprises:
a recognizer configured to recognize recognition targets including the traffic participants in the target traffic area and traffic environments of the traffic participants, and acquire recognition information regarding the recognition targets;
a predictor configured to predict a contact risk with other traffic participant in future of prediction targets that are a plurality of traffic participants present in a monitoring area that is part of the target traffic area by performing simulation on a basis of the recognition information;
a risk notification specifier configured to set an operation manner of the risk notification for each of the support targets on a basis of the recognition information and a prediction result from the predictor; and
a transmitter configured to transmit a setting result from the risk notification specifier to each of the support targets, and
the notification device comprises:
a human machine interface configured to operate in a manner recognizable by the driver; and
a control device configured to operate the human machine interface in a manner in accordance with the setting result transmitted from the coordination support device.
2 . The traffic safety support system according to claim 1 , wherein
in a case where the predictor predicts occurrence of the contact risk of parties that are a plurality of support targets in the monitoring area, the risk notification specifier sets priority to a plurality of prediction parties involved in the contact risk on a basis of content of the contact risk and sets ON of the risk notification earlier to prediction parties for which the priority is set higher than prediction parties for which the priority is set lower.
3 . The traffic safety support system according to claim 2 , wherein
the risk notification specifier specifies a risk inducer that induces the contact risk among the plurality of prediction parties involved in the contact risk and sets the priority higher to the risk inducer than to other prediction parties except the risk inducer.
4 . The traffic safety support system according to claim 1 , wherein
in a case where the predictor predicts occurrence of the contact risk of parties that are a plurality of support targets in the monitoring area, the risk notification specifier
sets a first mode as the notification mode for a prediction party determined so as to avoid occurrence of the contact risk from among the plurality of prediction parties involved in the contact risk until the contact risk becomes apparent, and
sets a second mode with a higher notification intensity than the first mode as the notification mode for all the prediction parties involved in the contact risk after the contact risk becomes apparent.
5 . The traffic safety support system according to claim 4 , wherein
the risk notification specifier acquires a contact prediction period that is a period until the contact risk will occur on a basis of the prediction result from the predictor, and in a case where the contact prediction period becomes less than an apparent threshold, determines that the contact risk becomes apparent.
6 . The traffic safety support system according to claim 5 , wherein
in a case where the second mode is set as the notification mode, the notification device sets the notification intensity higher as the contact prediction period becomes shorter.
7 . The traffic safety support system according to claim 5 , wherein
in a case where the first mode is set as the notification mode, the notification device emits sound having directivity toward a location where the contact risk is to occur or positions of the prediction parties involved in the contact risk.
8 . The traffic safety support system according to claim 1 , wherein
the notification device is capable of executing soundness-promoting notification for bringing, into a sound state, driving capability of a driver of a mobile body that moves with the notification device, and
the coordination support device further comprises a soundness-promoting notification specifier configured to estimate soundness of the driver for each of setting targets except parties of the contact risk predicted to occur by the predictor from among the plurality of support targets within the target traffic area on a basis of the recognition information and set ON/OFF of the soundness-promoting notification for each of the setting targets on a basis of the estimation result.
9 . The traffic safety support system according to claim 1 , wherein
the coordination support device further comprises a driving subject information acquirer configured to acquire state information correlated with driving capability of a driving subject of a mobile body recognized as a traffic participant by the recognizer, and
the predictor predicts the contact risk in future of the prediction targets by constructing a virtual space that simulates the monitoring area using a computer and performing simulation on a basis of the recognition information and the state information regarding the virtual space.
10 . The traffic safety support system according to claim 9 , wherein
the predictor comprises:
a behavior estimator configured to associate a first input including at least the recognition information from the recognition information and the state information, with at least one of a plurality of pattern behaviors of the driving subject determined in advance; and
a simulator configured to predict futures of the prediction targets by performing simulation based on the pattern behaviors associated by the behavior estimator on the virtual space.
11 . The traffic safety support system according to claim 10 , wherein
the behavior estimator comprises:
a driving capability estimator configured to estimate decrease of the driving capability for each capability element on a basis of the first input; and
an associator configured to associate the capability element for which the driving capability is estimated to have decreased by the driving capability estimator with at least one of a plurality of the pattern behaviors.
12 . The traffic safety support system according to claim 11 , wherein
the driving capability is divided into at least four capability elements of cognitive capability, prediction capability, determination capability and operation capability of the driving subject.