Module 57 - CV T160
CV T160: Connected Vehicle Certification Testing Introduction
HTML of the Student Supplement
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CV T160: Connected Vehicle Certification Testing Introduction
Table of Contents
1. Module Description
The CV T160 module follows related modules I261/CV-261: V2I (Vehicle-to-Infrastructure) Standards for Project Managers and I262/CV262: V2V (Vehicle-to-Vehicle) ITS Standards for Project Managers. V2I refers to Vehicle to Infrastructure applications, such as broadcasting the traffic signal phase and timing countdowns as well as lane placement to approaching vehicles for red light violation warning. V2V refers to Vehicle to Vehicle applications, such as broadcasting vehicle location, heading, speed, and elevation to one another for crash avoidance. While I261 and I262 describe the standards required for vehicle and roadside equipment interoperability throughout North America, CV T160 focuses upon Certification Testing to the conformance of the connected vehicle hardware and software to the published standards.
The connected vehicle environment has the potential to transform surface transportation systems such that vehicular crashes are significantly reduced, operators of the surface transportation systems have access to more accurate system performance data, and travelers have access to specific traveler information, and allow the surface transportation systems to be optimized to minimize environmental impacts.
This module begins with an introduction to the certification testing process of Roadside Unit (RSU) and On-Board Unit (OBU) devices to ensure that communications between vehicles and roadside equipment is private, secure, and interoperable throughout North America. It is essential that agencies use standards certification tests in deploying connected vehicle technologies to maximize the benefits from the connected vehicle environment. By taking this module, participants will learn how to specify certification requirements in contract terms and conditions. Deploying certified Connected Vehicle equipment will support interoperability, minimize future integration costs, make procurements easier, and facilitate regional and national integration
This module continues to cover the privacy and security measures taken in the connected vehicle architecture to insure authenticity of the data exchanges and to insure that no personal identification information is included in the data transmitted.
3.1. Why is certification important?
For the first time, vehicle active safety systems must rely on data received from other vehicles and the roadside equipment, instead of only data from the vehicle itself. Traditional Traffic Management and Control are shown in the shaded area of Figure 1:
(Extended Text Description: Author's relevant description: This figure has a traffic operator in front of a screen at the upper left connected to a traffic server. The traffic server is connected to an ATC and Time Server. The ATC is connected to a network switch that is also connected to and RSU to the right and to a Master Server to the left. A flat panel display attended by a traffic management operator is also connected to the Master Server. Additionally, this figure shows an RSU with lightning bolts to Satellite, OBU class 2 and OBU class 2 at the right. A transit bus is shown to the right of the OBU class 2, as well as an OBU class 3 and pedestrian / cyclist show with a lightning bolt for WiFi to the RSU. This figure also shows connections to Traffic Operations to the Master Server, and Research Organizations with Research Staff and Performance Data, Operational Data Center with the Application Data Archive, and back to the Transit Operations at the Transit Management Center. Key Message: Backhaul Communications can include: NTCIP communications from Traffic Signal Controller to Traffic Management Center (TMC), Management of RSU by central RSU management software system, Data TO and FROM RSU to data center, Backhaul Communications is not required to implement CV applications: Vehicle to Infrastructure (V2I) messages do not require backhaul communications, such as Curve Speed Warning (CSW) and others, Security certificates can be loaded during RSU manufacture and reloaded at normal maintenance, Backhaul Communications media can vary: Ethernet Fiber Cellular.)
Figure 1: Importance of Certification, Interdependent Data Flows
3.2. Test and Certification Levels
Testing and certification occurs at Levels as shown in Figure 2:
Level 1: Procurement of software objects and hardware objects
Level 2: Test of software modules and hardware units
Level 3: Integration test of software modules installed into hardware objects to form subsystems
Level 4: Acceptance test of system to fulfill Use Case requirements
Level 5: Validation of system installed in roadside equipment and vehicles
Level 6: End to end system test, operation and maintenance
(Extended Text Description: Author's relevant description: This figure has the "VEE" model shown on the left. To the right, and corresponding to each level of the "VEE" are shown connected vehicle elements corresponding to that level of the "VEE", from bottom to top: Level 1 shows the connected vehicle hardware devices and software applications that are procured in a typical CV system. Level 2 shows a test report for hardware device test and software unit Level 2 test for each. Level 3 shows the software integration into hardware level test for each subsystem. Level 4 shows the subsystems connected and tested as a system level. Level 5 shows the system validation level test deployed with real data. Level 6 shows operations and maintenance of the deployed system to end of life.)
Figure 2: Test and Certification Levels
4. Reference to Other Standards
Connected Vehicle Wireless Stack standards compliance certifications are shown in Figure 3.
Figure 3: Wireless Stack Standards
5. Case Study: USDOT Connected Vehicle Pilots
USDOT funded three Connected Vehicle Pilots in which we will preview the THEA case study:
Figure 4: USDOT Connected Vehicle Pilots
The THEA Suburban CV pilot focuses on a "before and after" study of the effectiveness of 11 CV applications deployed as six use cases at six locations in downtown Tampa FL, with existing safety and mobility issues as shown in Figure 5.
(Extended Text Description: Author's relevant description: Example graphic of Tampa Hillsborough USDOT Pilot map and installation locations showing map of Downtown Tampa and connected vehicle pilot deployment.)
Figure 5: THEA CV Pilot Study Area and Deployments
Each of the V2I and V2V applications shown in Figure 6 are selected from the list of CV applications on the USDOT website shown in Figure 7.
(Extended Text Description: Author's relevant description: Example graphic of Tampa Hillsborough Application to Use Case and Location, showing Pilot, Category, Application, Need/Use case and Location for the THEA Pilot.)
Figure 6: Eleven CV Applications Deployed as Six Use Cases
Figure 7: Connected Vehicle Applications
Figure 8 depicts Use Case 1: Morning Backups. Here, I-SIG and Curve Speed Warning CV applications are used to reduce ramp exit speed to within the stopping distances of the Florida Drivers Manual as the morning queue builds and reduces the safe stopping distance.
(Extended Text Description: Author's relevant description: Example graphic on top shows the End of Ramp Deceleration Warning speed zones when lightly traveled. Graphic on bottom shows the End of Ramp Deceleration Warning speed zones with a long queue at end of ramp.)
Figure 8: Use Case 1, Morning Backups using End of Lane Deceleration Warning application
Figure 9 depicts use of Wrong Way Warning when a vehicle attempts to enter the closed or inbound lanes of the Reversible Elevated Expressway (REL). The CV apps warn the violating driver before the violation occurs, warns the oncoming vehicle of a wrong-way driver, and alerts law enforcement as the violation persists.
Figure 10: Use Case 2, Wrong Way Entries
Figure 10 depicts use of Forward Collision Warning and Intersection Movement Assist for pedestrian safety in an uncontrolled midblock crosswalk.
Figure 11: Use Case 3, Pedestrian Conflicts / Pedestrian Safety
Figure 11 depicts use of Connected Vehicle Transit Signal Priority (TSP) using standard CV messages compatible with the new car messages to be able to use platoons of automated and connected vehicles as transit priority.
Figure 12: Use Case 4, BRT Optimization / Trip Times / Safety
Figure 12 depicts use of Connected Vehicle I-SIG application to control signals based on the arrival times and priorities of vehicles instead of timing plans.
Figure 13: Use Case 5, Traffic Progression
Figure 13 depicts the aggregation of Basic Safety Messages into Vehicle Classification, speeds, and volumes without need for special roadside equipment.
(Extended Text Description: Author's relevant description: Photo of Connected Vehicle management center and screens. To the right is the following text:
The RSU also aggregates Basic Safety Messages (BSM) and sends those to the CMS.
Aggregated BSMs have the same function as conventional loop detectors and provide traffic data:
Figure 14: Use Case 6, Agency Data
To include additional descriptions/acronyms used primarily in the module.
Connected Vehicle Pilot Deployment Program Phase 1, Concept of Operations (ConOps) - Tampa (THEA), Final Report — February, 2016 FHWA-JPO-16-311
USDOT Connected Vehicle Pilot Development Program:
USDOT Connected Vehicle Applications:
USDOT Certification Project:
Connected Vehicle Pilot Deployment Program Overview:
Certification program for 5.9GHz DSRC:
USDOT Guidance for Security Operational Concept:
Security Credential Management System Proof of Concept:
USDOT Plug Fest (Secure Credential Management System (SCMS) Proof of Concept (PoC) Overview)
ITS Standards Training Modules: MODULE 38. I262/CV-262 Vehicle-to-Vehicle (V2V) ITS Standards for Project Managers
DSRC Roadside Unit Specifications:
8. Study Questions
To include the quiz/poll questions and answer choices as presented in the PowerPoint slide to allow students to either follow along with the recording or refer to the quiz at a later date in the supplement.
1. What is the relationship between the RSE and RSU?
2. Which is not part of the RSU wireless stack?
3. Which of the following applies to Agencies requiring RSU certification process?
4. Which of the following is not a CV application group?
9. Icon Guide
The following icons are used throughout the module to visually indicate the corresponding learning concept listed below, and/or to highlight a specific point in the training material.
1) Background information: General knowledge that is available elsewhere and is outside the module being presented. This will be used primarily in the beginning of the slide set when reviewing information readers are expected to already know.
2) Tools/Applications: An industry-specific item a person would use to accomplish a specific task, and application of that tool to fit the need.
3) Remember: Used when referencing something already discussed in the module that is necessary to recount.
4) Refer to Student Supplement: Items or information that are further explained/detailed in the Student Supplement.
5) Example: Can be real-world (case study), hypothetical, a sample of a table, etc.
6) Checklist: Used to indicate a process that is being laid out sequentially.