Transit Vehicle OBE --> Personal Information Device:
vehicle path prediction

Definitions

vehicle path prediction (Information Flow): The predicted future vehicle path of travel. This flow includes an indication of the future positions of the transmitting vehicle that can be used by receiving vehicles to support coordinated driving maneuvers and enhance in-lane and out-of-lane threat classification.

Transit Vehicle OBE (Source Physical Object): The 'Transit Vehicle On-Board Equipment' (OBE) resides in a transit vehicle and provides the sensory, processing, storage, and communications functions necessary to support safe and efficient movement of passengers. The types of transit vehicles containing this physical object include buses, paratransit vehicles, light rail vehicles, other vehicles designed to carry passengers, and supervisory vehicles. It collects ridership levels and supports electronic fare collection. It supports a traffic signal prioritization function that communicates with the roadside physical object to improve on-schedule performance. Automated vehicle location enhances the information available to the transit operator enabling more efficient operations. On-board sensors support transit vehicle maintenance. The physical object supports on-board security and safety monitoring. This monitoring includes transit user or vehicle operator activated alarms (silent or audible), as well as surveillance and sensor equipment. The surveillance equipment includes video (e.g. CCTV cameras), audio systems and/or event recorder systems. It also furnishes travelers with real-time travel information, continuously updated schedules, transfer options, routes, and fares. A separate 'Vehicle OBE' physical object supports the general vehicle safety and driver information capabilities that apply to all vehicles, including transit vehicles. The Transit Vehicle OBE supplements these general capabilities with capabilities that are specific to transit vehicles.

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:

• PT12: Transit Vehicle at Station/Stop Warnings

This triple is associated with the following Functional Objects:

• Personal Pedestrian Safety
• Transit Vehicle V2V Safety

This Triple is described by the following Functional View Data Flows:

• transit_ped_path_prediction_data

This Triple has the following triple relationships:

Communication Solutions

• US: SAE LTE-V2X BSM - LTE-V2X WSMP (13)
• EU: CA Service - BTP/GeoNetworking/G5 (21)
• US: SAE Basic Safety Messages - WAVE WSMP (26)

Selected Solution

US: SAE Basic Safety Messages - WAVE WSMP

Solution Description

ITS Application Entity SAE J2735 SAE J2945/1			Click gap icons for more info.
Mgmt Addressed Elsewhere	Facilities SAE J2735 SAE J2945	Security Bundle: IEEE 1609.2
	TransNet IEEE 1609.3
	Access Bundle: WAVE - Subnet

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

Security