Commercial Vehicles - Vehicle Functionality
Subsystem Description
This subsystem 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: Vehicle Location Determination
Receives current location of the vehicle from GPS or other positioning technology and provides this information to other in-vehicle functions.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall provide the vehicle's current location to other in-vehicle functions. | Planned |
| 2 | The vehicle shall calculate the location from one or more data sources including positioning systems such as GPS, sensors that track vehicle movement, and maps used to determine the likely vehicle route. | Planned |
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.
| ID | Requirement | Status |
|---|---|---|
| 1 | The vehicle shall provide the capability for a driver to report an emergency and summon assistance. | Planned |
| 2 | The vehicle shall provide the capability to accept input from a driver via a panic button or some other functionally similar form of input device provided as part of the in-vehicle equipment. | Planned |
| 3 | The vehicle shall provide the capability to automatically identify that a collision has occurred using equipment such as collision detection sensors with an interface to mayday type equipment that would automatically detect vehicle problems and send appropriate distress signals to a center. | Planned |
| 4 | The vehicle shall forward a request for assistance to a center containing the driver's current location, its identity and basic vehicle data relevant to its current condition, as well as any other data, such as personal medical history, vehicle orientation, etc., that may be developed in-vehicle by other systems. | Planned |
| 5 | The vehicle shall acknowledge the driver's request for emergency assistance. | Planned |
| 6 | The vehicle shall provide further details about the emergency to the center upon request from that function. | 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 |
| 4 | The vehicle shall store a translation table for road sign and message templates used for in-vehicle display. | 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 |
| 4 | The vehicle shall provide an interface with the traveler card / payment instrument carried on-board the vehicle - to exchange identity information and payment transactions. | Planned |
| 5 | 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 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 |
|---|---|---|
| 1 | The vehicle shall respond to requests from short range communications equipment for identification information that can be used to collect basic probe information; the field equipment will remove identification information to ensure anonymity. | Planned |
| 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 |
| 3 | The vehicle shall record vehicle trip information (e.g., travel times, origin and destination information for vehicles that opt in) that can be used to support transportation planning. | Planned |
| 4 | The vehicle shall transmit collected probe data to the center. | Planned |
| 5 | The vehicle shall transmit collected probe data to field equipment located along the roadway. | Planned |
| 6 | The vehicle shall report the number of vehicle occupants to field equipment located along the roadway. | Planned |