Vehicle - Vehicle Functionality
Subsystem Description
The Vehicle Subsystem (VS) provides the sensory, processing, storage, and communications functions necessary to support efficient, safe, and convenient travel. These functions reside in general vehicles including personal automobiles, commercial vehicles, emergency vehicles, transit vehicles, or other vehicle types. Information services provide the driver with current travel conditions and the availability of services along the route and at the destination. Both one-way and two-way communications options support a spectrum of information services from low-cost broadcast services to advanced, pay for use personalized information services. Route guidance capabilities assist in formulation of an optimal route and step by step guidance along the travel route. Advanced sensors, processors, enhanced driver interfaces, and actuators complement the driver information services so that, in addition to making informed mode and route selections, the driver travels these routes in a safer and more consistent manner. Initial collision avoidance functions provide 'vigilant co-pilot' driver warning capabilities. More advanced functions assume limited control of the vehicle to maintain safe headway. Ultimately, this subsystem supports completely automated vehicle operation through advanced communications with other vehicles in the vicinity and in coordination with supporting infrastructure subsystems. Pre-crash safety systems are deployed and emergency notification messages are issued when unavoidable collisions do occur.
Functional Area: Basic Vehicle Reception
Provides drivers basic transportation information including formatted traffic advisories, event, and other traveler information as well as broadcast alerts.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall receive formatted traffic information from a center and present it to the driver. | Planned |
| 2 | The vehicle shall receive transit information from a center and present it to the driver. | Planned |
| 3 | The vehicle shall receive event information from a center and present it to the driver. | Planned |
| 4 | The vehicle shall receive evacuation information from a center and present it to the driver. | Planned |
| 5 | The vehicle shall receive wide-area alerts and present it to the driver. | Planned |
Functional Area: Driver Visibility Improvement System
On-board sensors and display to augment the driver's ability to see objects in the vehicle path in conditions where driving visibility is poor (e.g., bad weather, night driving, etc.).
Functional Area: Interactive Vehicle Reception
Provides drivers with traffic, maintenance and construction, transit, yellow pages, event, and weather information upon request.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall receive formatted traffic and travel advisories from a center and present them to the driver upon request. | Planned |
| 4 | The vehicle shall receive event information from a center and present it to the driver upon request. | Planned |
| 5 | The vehicle shall collect vehicle data and present it to the driver (including vehicle conditions, environmental conditions, safety and position warnings, and enhanced vision images) upon request. | Planned |
| 8 | The vehicle shall prioritize safety and warning messages to supersede advisory and broadcast messages. | Planned |
Functional Area: Vehicle Location Determination
Receives current location of the vehicle from GPS or other positioning technology and provides this information to other in-vehicle functions.
Functional Area: Vehicle Mayday I/F
In-vehicle capability for drivers or collision detection sensors onboard a vehicle to report an emergency and summon assistance.
Functional Area: Vehicle Safety Monitoring System
On-board systems to diagnose critical components of the vehicle and warn the driver of potential dangers, including steering, braking, acceleration, emissions, fuel economy, engine performance, etc.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall collect and monitor data concerning the safety of the vehicle - including, steering, braking, acceleration, emissions, fuel economy, engine performance, etc. | Planned |
| 2 | The vehicle shall determine the status of the vehicle in terms of its continued ability to operate in a safe manner. | Planned |
| 3 | The vehicle shall provide warnings to the driver of potential dangers based on sensor input and analysis concerning the safety of the vehicle. | Planned |
| 4 | The vehicle shall present information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner. | Planned |
Functional Area: Vehicle Short Range Traveler Information Reception
Provides drivers with road condition, environmental, advisory, and other traveler information received via short range communications.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall receive traveler information including traffic and road conditions, incident information, maintenance and construction information, event information, transit information, parking information, and weather information. | Planned |
| 2 | The vehicle shall receive advisory information, such as evacuation information, proximity to a maintenance and construction vehicle, wide-area alerts, work zone intrusion information, and other special information. | Planned |
| 3 | The vehicle shall receive indicator and fixed sign information including static sign information (e.g., stop, curve warning, guide signs, service signs, and directional signs) and dynamic information (e.g., current signal states and local conditions warnings identified by local environmental sensors). | Planned |
| 5 | The vehicle shall present the received information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner. | Planned |
Functional Area: Vehicle Toll/Parking Interface
On-board systems to support paying toll without stopping and pay for parking without the use of cash through the use of an active tag interface and debit/credit card interface.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall respond to requests from toll collection equipment for credit identity, stored value card cash, etc. | Planned |
| 2 | The vehicle shall respond to request from parking field equipment for credit identity, stored value card cash, etc. | Planned |
| 3 | The vehicle shall provide an interface to the driver to make requests for advance payments of tolls, parking, and transit fares and present the status of electronic payment transactions. | Planned |
Functional Area: Vehicle Traffic Probe Support
On-board systems that identify location, measure traffic conditions such as link travel time and speed and transmit data to a center or roadside equipment.
| ID | Requirement | Status |
|---|---|---|
| 2 | The vehicle shall track its current vehicle position, speed, and heading and record snapshots of events (e.g., starts and stops, link travel times) that can be used to determine current traffic conditions. | Planned |
| 5 | The vehicle shall transmit collected probe data to field equipment located along the roadway. | Planned |