ITS Roadway Equipment --> Pedestrian:
crossing permission
Definitions
crossing permission (Information Flow): Information provided to guide and warn pedestrians, micromobility vehicle users (e.g., cyclists), and other crosswalk users. It includes crossing request acknowledgment, current crossing permission, crossing time remaining, and real-time warnings of safety threats.
ITS Roadway Equipment (Source Physical Object): 'ITS Roadway Equipment' represents the ITS equipment that is distributed on and along the roadway that monitors and controls traffic and monitors and manages the roadway. This physical object includes traffic detectors, environmental sensors, traffic signals, highway advisory radios, dynamic message signs, CCTV cameras and video image processing systems, grade crossing warning systems, and ramp metering systems. Lane management systems and barrier systems that control access to transportation infrastructure such as roadways, bridges and tunnels are also included. This object also provides environmental monitoring including sensors that measure road conditions, surface weather, and vehicle emissions. Work zone systems including work zone surveillance, traffic control, driver warning, and work crew safety systems are also included.
Pedestrian (Destination Physical Object): The 'Pedestrian' represents a person traveling on foot. Pedestrians participate in ITS services that support safe, shared use of the transportation network. Included are visually impaired travelers who travel through portions of the transportation network and interact with ITS systems. They provide input (e.g. a call signal requesting right of way at an intersection) and may be detected by ITS services to improve safety
Included In
This Triple is in the following Service Packages:
- ST02: Eco-Traffic Signal Timing
- TM03: Traffic Signal Control
- TM04: Connected Vehicle Traffic Signal System
- TM13: Standard Railroad Grade Crossing
- TM14: Advanced Railroad Grade Crossing
- VS12: Vulnerable Road User Safety
This Triple is described by the following Functional View Functional Objects:
- Roadway Advanced Rail Crossing
- Roadway Mixed Use Crossing Safety
- Roadway Signal Control
- Roadway Standard Rail Crossing
This Triple is described by the following Functional View Data Flows:
This Triple has the following triple relationships:
| None |
Communication Solutions
No communications solutions identified.Characteristics
| None defined |
| Interoperability | Description |
|---|---|
| Not Applicable | Interoperability ratings don't apply per se to some types of interfaces like human interfaces. These interfaces may still benefit from associated standards (e.g., ergonomic and human factors standards for human interfaces), but the primary motive for these standards is not interoperability. |
Security
| Information Flow Security | ||||
|---|---|---|---|---|
| Confidentiality | Integrity | Availability | ||
| Rating | Not Applicable | High | Low | |
| Basis | This data is intentionally transmitted to everyone via a broadcast. | Although pedestrians have a responsibility to make sure the road is safe before they cross, they may react instinctively to incorrect information and be led to cross at unsafe times if they get incorrect information. Also, if the traffic signals are wrong and an accident happens, the pedestrian involved could sue, causing financial loss and other undesirable outcomes. | It is easy to tell whether this information flow is available and pedestrians are used to using crosswalks that do not provide this service. | |
| None defined |