Connected Vehicle Applications and Supporting Documentation

Return to Interoperable Connectivity Use Cases

Mobility and Environmental Use Cases

Use Case	Description	Type
Traffic Signal Optimal Speed Advisory (or Control)	This use case broadcasts the current state of signal phasing (red, yellow, or green) and time remaining in that phase at signalized intersections. These data are used by vehicles to support eco-friendly speed trajectories as vehicles approach a signalized intersection. This use case may also be combined with Cooperative Adaptive Cruise Control (CACC). (Infographic)	V2I Use Case
Intelligent Traffic Signal System (I-SIG)	This use case includes an overarching system optimization application accommodating signal priority, preemption, and pedestrian movements.	V2I Use Case
Signal Priority Transit Freight Snowplow Platooning Priority	This use case provides extra green time at signalized intersections to vehicles, such as transit vehicles, snowplows, or freight vehicles, helping the vehicles avoid a stop at a red light. This additional time can help a bus arrive at stops on time, reduce snowplow delays, or reduce truck idling for freight vehicles along an arterial corridor near a freight facility	V2I Use Case
Mobile Accessible Pedestrian Signal System (PED-SIG)	This use case allows for an automated call from the smartphone of a visually impaired pedestrian to the traffic signal, as well as audio cues to safely navigate the crosswalk.	V2I Use Case
Speed Harmonization	This use case recommends target speeds to drivers in response to congestion, incidents, and road conditions to maximize throughput and reduce crashes. (Infographic)	V2I Use Case
Queue Warning	This use case provides the driver timely warnings of existing and impending queues. (Infographic)	V2I Use Case
Cooperative Adaptive Cruise Control (CACC) / Vehicle Platooning	This use case dynamically adjusts and coordinates cruise control speeds among platooning vehicles to improve traffic flow stability and increase throughput.	V2V Use Case

Supporting Documentation

• Vision and Operational Concept for Enabling Advanced Traveler Information Services Operational Concept
• Vision and Operational Concept for Enabling Advanced Traveler Information Services - Market Readiness Assessment
• EnableATIS Strategy Assessment
• USDOT Connected Vehicle Research Program Vehicle-to-Vehicle Safety Application Research Plan

• MMITSS Final ConOps
• Multi-Modal Intelligent Traffic Signal System Final System Requirements Document
• Multi-Modal Intelligent Traffic Signal System - System Design

• Concept Development and Needs Identification for Intelligent Network Flow Optimization (INFLO) Concept of Operations
• Concept Development and Needs Identification for Intelligent Network Flow Optimization (INFLO) Assessment of Relevant Prior and Ongoing Research
• Concept Development and Needs Identification for INFLO: Functional and Performance Requirements, and High-Level Data and Communication Needs
• Concept Development and Needs Identification for Intelligent Network Flow Optimization (INFLO) Test Readiness Assessment
• Report on Detailed Requirements for the INFLO Prototype
• Report on Architecture Description for the INFLO Prototype
• Report on Dynamic Speed Harmonization and Queue Warning Algorithm Design
• System Design Document for the INFLO Prototype

• Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.) Concept of Operations
• Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.) Report on Functional and Performance Requirements, and High-Level Data and Communication Needs
• Prototype Development and Demonstration for Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.), R.E.S.C.U.M.E. Prototype System Architecture
• Prototype Development and Demonstration for Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.), Final Functional and Performance Requirements
• Prototype Development and Demonstration for Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.), R.E.S.C.U.M.E. Prototype System Design Document

• Integrated Dynamic Transit Operations (IDTO) Concept of Operations
• Report on Functional and Performance Requirements and High-Level Data and Communication Needs for Integrated Dynamic Transit Operations (IDTO)
• Test Readiness Assessment Summary for Integrated Dynamic Transit Operations (IDTO)
• Report on Functional Requirements and Software Architecture for the IDTO Prototype Phase I Demonstration Site (Columbus)
• System Design and Architecture for the IDTO Prototype Phase I Demonstration Site (Columbus)

• Freight Advanced Traveler Information System (FRATIS) Concept of Operations (FHWA-JPO-12-065)
• Freight Advanced Traveler Information System Functional Requirements (FHWA-JPO-12-066)
• FRATIS Concept of Operations Assessment of Relevant Prior and Ongoing Research and Industry Practices (FHWA-JPO-12-067)
• FRATIS Concept of Operations - Assess Test Readiness of FRATIS (Task 4)
• Freight Advanced Traveler Information System (FRATIS) Architecture and Implementation Report - Dallas-Fort Worth
• Freight Advanced Traveler Information System (FRATIS) Demonstration Plan - Dallas-Fort Worth
• Freight Advanced Traveler Information System (FRATIS) Architecture and Implementation Report - Los Angeles
• Freight Advanced Traveler Information System (FRATIS) Demonstration Plan  - Los Angeles
• Freight Advanced Traveler Information System (FRATIS) Architecture and Implementation Report - South Florida
• Freight Advanced Traveler Information System (FRATIS) Demonstration Plan  - South Florida
• Freight Advanced Traveler Information System (FRATIS) Demonstration Team Final Report

• Applications for the Environment: Real-Time Information Synthesis (AERIS) - Eco-Lanes: Operational Concept

Eco-Approach and Departure at Signalized Intersections, Eco-Traffic Signal Timing, Eco-Traffic Signal Priority, Connected Eco-Driving, and Wireless Inductive/Resonance Charging

• Applications for the Environment: Real-Time Information Synthesis (AERIS) Eco-Signal Operations: Operational Concept

Eco-Lanes Management, Eco-Speed Harmonization, Eco-Cooperative Adaptive Cruise Control, Eco-Ramp Metering

• Applications for the Environment: Real-Time Information Synthesis (AERIS) - Eco-Lanes: Operational Concept

Low Emissions Zone Management

• Applications for the Environment: Real-Time Information Synthesis (AERIS) Low Emissions Zones: Operational Concept

Eco-Traveler Information Applications, AFV Charging/Fueling Information, Eco-Smart Parking, Dynamic Eco-Routing (Light Vehicle, Transit, Freight), Eco-ICM Decision Support System

• Descriptions and concepts are available in the presentation decks