TxDOT Traffic Drone Device - 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: 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. Medium-term
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. Medium-term

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. Medium-term
4 The vehicle shall transmit collected probe data to the center. Medium-term
7 The vehicle shall respond to commands from the traffic management center to control the operation of the vehicle and its data gathering elements. Medium-term