Not Applicable Security Group
The "Not Applicable" group includes architecture flows that do not carry information; for example, flows that represent the physical environment.
Security Objectives
| Objective | Classification | Class Description |
|---|---|---|
| Confidentiality | Minimal | Non-sensitive information available for public release |
| Integrity | Minimal | Unauthorized or unintended modification of the information would have negligible impact on the operation of the transportation system |
| Availability | Minimal | Loss of the information would have negligible impact on the operation of the transportation system |
Architecture flows
- basic transit vehicle controls
- boarding and alighting
- commercial vehicle measures
- crew movements
- crossing call
- crossing permission
- CVO weight and presence
- driver information
- driver inputs
- driver parking information
- driver updates
- environmental conditions
- field device status presentation
- field device status request
- fleet manager inquiry
- hazmat environmental factors
- identification information
- in-vehicle transaction status
- ISP operator inputs
- maint and constr center personnel inputs
- maint and constr field personnel information presentation
- maint and constr field personnel inputs
- maint and constr operations information presentation
- maint and constr vehicle condition presentation
- maint and constr vehicle control
- non-vehicular presence
- parking operator inputs
- parking status
- payment information presentation
- physical presence
- pollutant levels
- pollution data parameters
- position fix
- request for performance data
- request for service
- road user protection data
- road user protection device control
- roadside transaction status
- roadway characteristics
- route assignment
- secure area characteristics
- toll operator information presentation
- toll operator requests
- traffic characteristics
- transit operations status
- transit vehicle operator availability
- traveler inputs
- traveler interface updates
- vehicle characteristics
- work zone warning
