Personal Information Device --> Transportation Information Center:
wayfinding request

Definition
Included In
Communication Solutions
Characteristics
Security

Definitions

wayfinding request (Information Flow): Request for wayfinding planning services that identifies the trip origin, destination(s), timing, preferences, and constraints. The request may also include customization of the request based on a traveler profile as well as the requestor's location. The wayfinding request also covers requests to revise a previously planned wayfinding plan and interim updates that are provided as the wayfinding portion of an overall trip is interactively planned.

Personal Information Device (Source 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.

Transportation Information Center (Destination Physical Object): The 'Transportation Information Center' collects, processes, stores, and disseminates transportation information to system operators and the traveling public. The physical object can play several different roles in an integrated ITS. In one role, the TIC provides a data collection, fusing, and repackaging function, collecting information from transportation system operators and redistributing this information to other system operators in the region and other TICs. In this information redistribution role, the TIC provides a bridge between the various transportation systems that produce the information and the other TICs and their subscribers that use the information. The second role of a TIC is focused on delivery of traveler information to subscribers and the public at large. Information provided includes basic advisories, traffic and road conditions, transit schedule information, yellow pages information, ride matching information, and parking information. The TIC is commonly implemented as a website or a web-based application service, but it represents any traveler information distribution service.

Included In

This Triple is in the following Service Packages:

TI08: Personal Wayfinding

This triple is associated with the following Functional Objects:

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

personal_wayfinding_request

This Triple has the following triple relationships:

Relationship	Source	Destination	Flow
Interactive	Transportation Information Center	Personal Information Device	wayfinding information
Request-Response	Transportation Information Center	Personal Information Device	wayfinding plan

Communication Solutions

(None-Data) - Secure Wireless Internet (EU) (32)
(None-Data) - Secure Wireless Internet (ITS) (32)

Solutions are sorted in ascending Gap Severity order. The Gap Severity is the parenthetical number at the end of the solution.

Selected Solution

(None-Data) - Secure Wireless Internet (ITS)

Solution Description

This solution is used within the U.S.. It combines standards associated with (None-Data) with those for I-M: Secure Wireless Internet (ITS). The (None-Data) standards include an unspecified set of standards at the upper layers. The I-M: Secure Wireless Internet (ITS) standards include lower-layer standards that support secure communications between two entities, either or both of which may be mobile devices, but they must be stationary or only moving within wireless range of a single wireless access point (e.g., a parked car). Security is based on X.509 or IEEE 1609.2 certificates. A non-mobile (if any) endpoint may connect to the service provider using any Internet connection method.

ITS Application Entity Development needed			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB	Facilities Development needed	Security Secure Session Alternatives
	TransNet IP Alternatives Internet Transport Alternatives
	Access Wireless Internet Alternatives (NA)

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	Regional
Acknowledgement	True
Cardinality	Unicast
Initiator	Source
Authenticable	True
Encrypt	True

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	Moderate	Moderate	Moderate
Basis	Likely to include some PII and could compromise privacy if observed.	Impact feels minimal if incorrect or not timely, likely affecting a very small number of travelers, though in high crime areas could put them in jeopardy. Additionally however, travelers in unfamiliar areas would depend on the contents for safe and efficient personal navigation.	Impact feels minimal if incorrect or not timely, likely affecting a very small number of travelers, though in high crime areas could put them in jeopardy. Additionally however, travelers in unfamiliar areas would depend on the contents for safe and efficient personal navigation.

Security Characteristics	Value
Authenticable	True
Encrypt	True

Personal Information Device --> Transportation Information Center:wayfinding request