Connected Vehicle Roadside Equipment --> Personal Information Device:
personal crossing safety information
Definitions
personal crossing safety information (Information Flow): Current crossing status including permission to cross, crossing time remaining, and warnings in the event that a vehicle reports an imminent intersection infringement that may impact non-motorized users including pedestrians and cyclists.
Connected Vehicle Roadside Equipment (Source Physical Object): 'Connected Vehicle Roadside Equipment' (CV RSE) represents the Connected Vehicle roadside devices (i.e., Roadside Units (RSUs)) equipped with short range wireless (SRW) communications technology, as well as any other supporting equipment that leverage the RSU and are not described by other objects (e.g., a local roadside processor). CVRSE are used to send messages to, and receive messages from, nearby vehicles and personal devices equipped with compatible communications technology. Communications with adjacent field equipment and back office centers that monitor and control the RSE are also supported. This device operates from a fixed position and may be permanently deployed or a portable device that is located temporarily in the vicinity of a traffic incident, road construction, or a special event. It includes a processor, data storage, and communications capabilities that support secure communications with passing vehicles, other field equipment, and centers.
Personal Information Device (Destination Physical Object): The 'Personal Information Device' provides the capability for travelers to receive formatted traveler information wherever they are. Capabilities include traveler information, trip planning, and route guidance. Frequently a smart phone, the Personal Information Device provides travelers with the capability to receive route planning and other personally focused transportation services from the infrastructure in the field, at home, at work, or while en-route. Personal Information Devices may operate independently or may be linked with vehicle on-board equipment. This subsystem also supports safety related services with the capability to broadcast safety messages and initiate a distress signal or request for help.
Included In
This Triple is in the following Service Packages:
This triple is associated with the following Functional Objects:
This Triple is described by the following Functional View Data Flows:
- intersection_personal_warning
- roadside_pedestrian_signal_service_status
- roadside_personal_crossing_data
- roadside_personal_intersection_warning
- roadside_personal_turning_vehicle_warning
This Triple has the following triple relationships:
| Relationship | Source | Destination | Flow |
|---|---|---|---|
| Depends On | ITS Roadway Equipment | Connected Vehicle Roadside Equipment | mixed use crossing status |
Communication Solutions
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US: SAE Other J2735 - LTE-V2X WSMP (21)
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US: SAE Signal Control Messages - WAVE WSMP (39)
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(None-Data) - BTP/GeoNetworking/G5 (58)
Selected Solution
US: SAE Other J2735 - LTE-V2X WSMPSolution Description
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ITS Application Entity
  
SAE J2735  |
Click gap icons for more info.
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Mgmt
SAE J3161 3GPP 24.301 3GPP 36.331 |
Facilities
SAE J2735 |
Security
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TransNet
IEEE 1609.3 |
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Access
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Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.
Characteristics
| Characteristic | Value |
|---|---|
| Time Context | Recent |
| Spatial Context | Adjacent |
| Acknowledgement | False |
| Cardinality | Broadcast |
| Initiator | Source |
| Authenticable | True |
| Encrypt | False |
| Interoperability | Description |
|---|---|
| National | This triple should be implemented consistently within the geopolitical region through which movement is essentially free (e.g., the United States, the European Union). |
Security
| Information Flow Security | ||||
|---|---|---|---|---|
| Confidentiality | Integrity | Availability | ||
| Rating | Not Applicable | Moderate | Low | |
| Basis | This data is intentionally transmitted to everyone via a broadcast. It can also be determined via other visual indicators. | People will use this information to determine if they can cross, so incorrect information increases the risk of accidents. DISC: THEA believes this to be HIGH: "info needs to be accurate and should not be tampered with (used to warn pedestrians of infringement, etc.); higher because enables accessibility; pedestrians may not be able to see/hear the information" | If this is down, the pedestrian still gets information from the RE and from the rest of the environment. DISC: NYC and THEA believe this to be MODERATE: info needs to be accurate and should not be tampered with (used to warn pedestrians of infringement, etc.); higher because enables accessibility; pedestrians may not be able to see/hear the information; however, overall I level is M, not H, because message is still just information and pedestrian needs to use their own awareness A: needs to be readily available to give permission to cross, time remaining, etc. but cannot guarantee wireless communication; however, worst case is the pedestrian has to wait; also cannot guarantee wireless communication |
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| Security Characteristics | Value |
|---|---|
| Authenticable | True |
| Encrypt | False |