Gwinnett County Connected Vehicle Technology Master Plan Update

March 29, 2019

Agenda

• Background

• Connected Vehicle Master Plan• Goals• Roles for Team Members• Accomplishments to Date• Challenges• Research Update

• Future• Completing the Plan• Peachtree Industrial Boulevard Smart Corridor

• 726 Traffic Signals• Over 550 communicate

with TCC• Over 230 miles of fiber

optic cable• More than 260 CCTV

cameras• Over 220 flashing

beacon locations• Continued Expansion

of Advanced Traffic Management System

“Connected Vehicles Can Sense and Communicate Things Drivers Cannot”

- US DOT

What is so special abouta Connected Vehicle?

• Provide Gwinnett County guidance with deploying CV technology to improve safety for all road users.

• Establish recommendations of standards and best practices for CV technology

• Have measurable outcomes for CV projects

• Be replicable for both Gwinnett County and other local governments

Connected Vehicle Technology Master Plan - Goals

• GCDOT • Tom Sever – Project Champion• Ken Keena• Alex Hofelich

• Georgia Tech• Dr. Angshuman Guin – Research

Lead• AECOM

• Marc Start – Project Manager• Suzanne Murtha – Industry Expert• Leslie Langley

Connected Vehicle Technology Master Plan – Team Members Roles

• Stakeholders• Public Safety Departments• Transit• Cities and CIDs

Stakeholder Meeting – November 2018• Valuable discussion and feedback• Shared their needs and challenges• Helped established focus areas for project team

Connected Vehicle Technology Master Plan – Accomplishments

Focus areas identified by stakeholders Comment Frequency

Congestion relief 12Emergency vehicles 8Pedestrian safety 8Transit buses 3Bottleneck alerts 3Freight 3Incident response and clearance times 3

CV Application Reviews –1st Quarter 2019

• Identification of CV apps for deployment

• Understanding of which CV apps would need support from other parties

• Clarified which apps could be deployed in 2019 pilot project and which needed more development

Connected Vehicle Technology Master Plan – Accomplishments

Application / Year 2019 - 2020 2021 - 2022 2023 - 2024 Gwinnett County

PIB Smart Corridor Develop and Test New Applications;

In Coordination with ARC, GDOT Scale Up to County-Wide,

and Fine-Tune Applications 1. All Solutions • Deploy DSRC in the West

Zone • Test connected vehicle

data collection, analytics, and archiving

• State-wide; dashboard for intersection traffic signal operations (RR + EVP + TSP + FSP transition times)

• State-wide; manage RR + EVP + TSP + FSP conditional requirements

• Test CV-generated safety data alerts

• Deploy DSRC county-wide • County-wide connected vehicle

data, analytics, and archiving • Deploy mission-critical CV-

generated safety data alerts

2. Signal Phase and Timing (SPaT) Information

• Enable red light warning, phase termination/next signal phase, and green band speed applications

• Monitor benefits of safety applications related to fleet penetration of DSRC and cellular OBUs

•

• Monitor benefits of safety applications related to fleet penetration of DSRC/cellular OBUs

• 3. Emergency Vehicle

Preemption (EVP) • Enable EVP • Install OBUs on fire trucks

• State-wide; manage EVP conditional priority requirements

• Alerts for excessive transition time

4. Transit Signal Priority (TSP)

• Enable TSP • Install OBUs on transit

vehicles

• Manage TSP conditional priority • Test schedule adherence conditional priority • Test bus occupancy conditional priority

• County-wide system development • Alerts for excessive transition time

5. Freight Signal Priority (FSP)

• Enable FSP • State-wide; manage FSP conditional priority • Develop commercial freight outreach

program

• County-wide system development • Alerts for excessive transition time

6. Construction and Maintenance Vehicle Alert

• Enable alerts • Install OBUs and HMIs on

select GCDOT vehicles

• State-wide; manage alert conditional requirements

• County-wide system development

7. Rail Intersection Blocked Alert

• Enable predictive railroad crossing delay

• Railroad crossing prediction accuracy

• State-wide; evaluate railroad crossing safety applications

• County-wide system development • Develop additional railroad

crossing safety applications

8. Mobile Accessible Pedestrian Signal System (PED-SIG)

• Driver alerts based on pedestrian pushbutton activation

• Test transit and school bus door open events • Test applications for the visually impaired • Test applications for mid-block pedestrians

• County-wide system development •

Coordination with GDOT –1st Quarter 2019

• GDOT has already deployed roadside units (RSU) and is planning to expand

• Some CV apps interface with traffic signal controller firmware - GDOT needed to assist

• GDOT willing to provide RSUs for state route intersections in Gwinnett County

Connected Vehicle Technology Master Plan – Accomplishments

Connected Vehicle Technology Master Plan – Challenges

Data Collection for Research• Focused on Emergency Vehicle response times• Just getting started• Needed to deploy GPS data collection for high quality

data set• Had to ensure data collection was compliant with both

Georgia Tech and Gwinnett County guidelines

Research

Potential Applications (Safety and Mobility)

Emergency Vehicle Preemption (EVP)

Transit Signal Priority (TSP)

Freight Signal Priority (TSP)

Mobile AccessiblePedestrian Signal

System (PED‐SIG)

Rail IntersectionBlocked Alert

Construction andMaintenanceVehicle Alert

Signal Phase andTiming (SPaT)

Information

What?

Evaluate the potential for improvements in safety and operations of emergency response vehicles in and around the Peachtree Industrial Boulevard corridor with Connected Vehicle technology deployment.

Photo Credit: https://www.cnn.com/2013/04/10/us/georgia-firefighters-hostage/index.html

- Reduction in delay in response

- Improvement in mobility- Improvement in safety- Implementation strategies

for maximizing benefits

How?

Bottleneck analysis to identify congestion hotspots for

• Emergency Vehicles• Passenger Cars

Delay pattern analysis for First Responder Vehicle paths

• Infrastructure maintained by Gwinnett County

• Has activity centers and rural sections

• Passes through 7 cities‒Norcross, Peachtree

Corners, Berkeley Lake, Duluth, Suwanee, Sugar Hill and Buford

• 6 fire stations within 1.5 miles• Identified for Transit system

expansion

Study Site

Photo Credit: Gwinnett County

Data

• Signal Status Data• 10 Hz data for past 3 months is

being analyzed• Streaming capability (from

Gwinnett to GT) is being developed• Firetruck Location Data

• GPS data collection on 15 Firetrucks from 6 Fire Stations

• GT equipment deployed on Gwinnett county firetrucks

• 2-4 months of second by second location data

• Delay patterns for Emergency vehicles

• Response request patterns (response logs)

• Multiple firetruck arrival patterns at intersections

• Identification of intersection approaches with

• Maximum delay• High frequency of potential

preemption demand

Analysis

Benefits

Signal Preemption with Connected Vehicle

• Multi-signal look-ahead preemption• Queue flush downstream of Emergency

Vehicle• Minimization of Congestion Impacts on

passenger cars

Photo Creditshttps://www.its.dot.gov

https://www.semanticscholar.org/paper/GPS-and-ZigBee-based-traffic-signal-preemption-Kodire-Bhaskaran/b1d0e1034d5c147b44f6fcb51ab06d722b30acaa

https://ascelibrary.org/doi/full/10.1061/JTEPBS.0000062

Next Steps

• Complete Data Collection and Analysis

• Host a Regional Conversation as part of the GA Smart site visit

• Proposed GDOT deployments on RTOP corridors

• Local Agencies with similar initiatives

Next Steps

• Develop the Draft Master Plan

• Public Engagement and Information Meeting

• PIB/Western Gwinnett Smart Corridor pilot project

Next Steps

Thank youTom Sever, P.E.Deputy Director, Traffic Engineering, Operations and Maintenancetom.sever@gwinnettcounty.com

Angushman Guin, Ph.D.Senior Research Engineer, Georgia Techangshuman.guin@ce.gatech.edu