Current | Yao-Jan Wu

Current Projects

Development of Integrated Traffic Data Dashboard

Feb. 2026 - Dec. 2026 (ONGOING)

PI: Yao-Jan Wu, Ph.D., P.E

Co-PI: Bharat Pathivada, Ph.D.
City of Peoria PM: Jodi McKenzie & Isaiah Landavaso

Sponsor: City of Peoria

Traffic Engineering Tech Support for the City of Yuma (Phase 3)

July 2025 - June 2026 (ONGOING)

PI: Bharat Pathivada, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Sponsor: City of Yuma

Safety Evaluations of Roundabout in the City of Phoenix

Jan. 2026 - June 2026 (ONGOING)

PI: Bharat Pathivada, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Sponsor: City of Phoenix

Technical Support For Effective Arterial Traffic Management – Phase 2

Aug. 2025 - Aug. 2026 (ONGOING)

PI: Bharat Pathivada, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.
UA PM: Pramesh Pudasaini, Ph.D.
Town of Marana PM: Diahn Swartz

Sponsor: Town of Marana

AI-Enabled Traffic Asset Management

June 2024 - June 2026 (ONGOING)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: James Tsai, Ph.D.
UA PM: Pei-Yu Leu
PCDOT PM: Joe Sweet

Sponsor: Pima County DOT

NCHRP 07-34: Artificial Intelligence for Transportation Systems Management and Operations Applications

Apr. 2024 - Oct. 2026 (ONGOING)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Yinhai Wang, Ph.D., P.E.; Michael Washkowiak, P.E.; Pramesh Pudasaini, Ph.D.

Sponsor: USDOT and Transportation Research Board, the National Academy of Sciences

Optimizing Traffic Signals Using Multi-Source Data: Phase 9

July 2025 - July 2026 (ONGOING)

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Blake Olofson

Sponsor: City of Tucson

Investigating Road User's Compliance of Yellow and Clearance Time Intervals for Signal Timing Design (Phase 3)

Oct. 2023 - May 2026 (ONGOING)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Tom Cooper

Sponsor: City of Phoenix

Improving Traffic Operations Using Advanced Methods

PI: Yao-Jan Wu, Ph.D., P.E

Co-PI: Bharat Pathivada, Ph.D.
PM: Clark Clatanoff, P.E., PTOE

Passive Detection Technology for Bikes, Pedestrians and Motorists

PI: Larry Head, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

South32 Hermosa Project Phase 1: Asset Inventory, Gap Analysis, and Innovative Pathways

PI: Bo Yang, Ph.D.

Co-PI(s): Yao-Jan Wu, Ph.D., P.E., et al.

SPR-792: State of The Practice of a Data Management Office Within DOTs

PI: Mingfeng Shang, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.
PM: Julie McIlwain

Scalable AI-Driven Tool for Comprehensive Data Collection, Analysis, and Decision Support in Complete Streets

PI: Dr. Wei Sun, Chief Executive Officer, AIWaysion INC

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Enhanced Analytics for Regional Traffic Count Data

PI: Ali Shamshiripour, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.
PAG PM: James Tokishi

Leveraging Existing Data Sources to Obtain Performance Measures for a Multi-modal Transportation System

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Ali Shamshiripour, Ph.D.
PM: Dr. Hyunsoo Noh

Pilot Study of Connected Vehicle Applications to Enhance Incident Response and Roadway Safety

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Simon Ramos, P.E.

Traffic Engineering Tech Support for the City of Yuma (Phase 1-2)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Alyssa Ryan, Ph.D.
PM: David Wostenberg, P.E.

Evaluating Communication Technologies for Effective Traffic Monitoring

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Henrick Haule, Ph.D.
PM: Simon Ramos, P.E.

Investigating Safety Effectiveness of Red Light Running Cameras

PI: Alyssa Ryan, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E
PM: Reed Henry

Traffic Data Analytics Platform Development for TSMO : Statewide Mobility Analytics in Real-Time (SMART) Tool Expansion

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Abolfazl Karimpour, Ph.D. & Matt Nordstrom, Ph.D.
PM: Susan Anderson, P.E., PTOE; John Robersts, & Steven Chesko

NCHRP 03-144: Leveraging Existing Traffic Signal Assets to Obtain Quality Traffic Counts and Enhance Transportation Monitoring Programs

PI: Ioannis Tsapakis, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Investigating Road User's Compliance of Yellow and Clearance Time Intervals for Signal Timing Design (Phases 1 - 2)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Abolfazl Karimpour, Ph.D. & Matt Nordstrom, Ph.D.
PM: Simon Ramos, P.E.

Automated Data Collection and Analysis for Arterial Traffic Operations (Phase 1 - 5)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Mohammad Shaon (Phase 1) & Abolfazl Karimpour (Phase 2 - 3)
PM: Diahn Swartz, P.E.

Engineering Training for Traffic Signal Timing Optimization (Phase 2)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Henrick Haule, Ph.D.
PM: Simon Ramos, P.E.

Optimizing Traffic Signals Using Multi-Source Data (Phases 1 - 8)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Xiaofeng Li, Ph.D. (Phases 5 & 6)
PM: Francisco Leyva

Dynamic Traffic Assignment Modeling of Valencia Corridor

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Lauren Fecteau, P.E., PTOE

Comprehensive Literature Review for Traffic Signal Timing Issues/Events Related to Red-Light Running

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Abolfazl Karimpour, Ph.D.
PM: Simon Ramos, P.E.

Region-Wide Traffic Performance Evaluation and Performance Measure Development Using Multi-Source Data

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Xiaofeng Li, Ph.D.

Traffic Signal Performance Measurement: Case Study of McDowell Rd.

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Abolfazl Karimpour, Ph.D.
PM: Simon Ramos, P.E.

Feasibility Assessment for Adaptive Signal Control (ASC) System

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Xiaofeng Li, Ph.D.
PM: Richard Hooker

Statistical Comparisons of Traffic Data for Traffic Signal Re-Timing

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Abolfazl Karimpour, Ph.D.
PM: Simon Ramos, P.E.

Technical Support for Metropia Data Analytics & DynasT Modeling

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Alyssa Ryan, Ph.D. (Phase 2)

Data-Driven Optimization for E-Scooter System Design

PI: Jianqiang Cheng, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Traffic Data Analytics Platform Development for TSMO – Expansion of Ramp Metering Evaluation Tool

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Susan Anderson, P.E., PTOE & John Roberts

Comparative Analysis and Integration of Region-Wide Traffic Data

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Hyunsoo Noh, Ph.D.

Evaluation of Emerging Transportation Technologies: Case Studies in Phoenix and Chandler

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Mohammad Shaon, Ph.D. (Phase 1) & Abolfazl Karimpour, Ph.D. (Phase 2)

Evaluation of Emerging Transportation Technologies: MAG Public Universities Task Force Support

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Shuyao Hong

Data-Driven Mobility Strategies for Multi-Modal Transportation

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Xianfeng (Terry) Yang, Ph.D. & Sirisha Kothuri, Ph.D.

Tech Support for Transportation Network Management System

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Mohammad Shaon, Ph.D. (Phase 1) & Abolfazl Karimpour, Ph.D. (Phase 2)

Development of Low-Cost Radar-Based Sensor for Multi-Modal Traffic Monitoring

PI: Siyang Cao, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Data Analytics for Traffic Signal Optimization

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Michelle Montagnino, P.E., PTOE

Land Use and Transportation Policies for a Sustainable Future with Autonomous Vehicles: Scenario Analysis with Simulations

PI: Liming Wang, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Multi-Criteria Evaluation of Advanced Traffic Management Systems

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Simon Ramos, P.E.

Engineering Training for Traffic Signal Timing Optimization

PI: Yao-Jan Wu, Ph.D., P.E.

Development of a Regional Plan for Enhancing Future of Mobility and Technology

PI: Ram Pendyala, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Pima County Speed Management evaluation and Strategic Development: Data-Driven Enforcement

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Dean Papajohn, Ph.D.
PM: Stephen Wilson

Data-Driven Evaluation for ADOT Ramp Metering

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Vahid Goftar, P.E.

Developing of Quality of Signal Timing Performance Measure Methodology for Arterial Operations

PI: Zong Tian, Ph.D.

Key Personnel: Yao-Jan Wu, Ph.D., P.E.

Before-and-After Traffic Study for Indirect Left Turns on Grant Rd., Tucson

PI: Yao-Jan Wu, Ph.D., P.E.

Traffic Study for Indirect Left Turns on Grant Rd., Tucson - After Phase 2: Stone/Park Construction

PI: Yao-Jan Wu, Ph.D., P.E.

Evaluation of Traffic Signal Communication

PI: Yao-Jan Wu, Ph.D., P.E.

Visualizing Performance Measures with Multi-Source Traffic Data

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Weihua Zhang

Incorporating Freeway Performance Measures into Real-Time Crash Prediction

PI: Yao-Jan Wu, Ph.D., P.E.

PM: Vahid Goftar, P.E.

SHRP2 Implementation Assistance Program (IAP): Reliability Data and Analysis Tools

PI: Yao-Jan Wu, Ph.D., P.E.

University of Arizona Bluetooth Solution - Oracle Rd. Travel Time Data Collection

PI: Yao-Jan Wu, Ph.D., P.E.

Analyzing Travel Time Data: Development of Traffic Data Quality Assurance Tool

PI: Yao-Jan Wu, Ph.D., P.E.

Metropia App Quality Assurance and Data Examination

PI: Yao-Jan Wu, Ph.D., P.E.

Multi-modal Arterial Performance Measurement Using Mult-source ITS Data

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Yi-Chang Chiu, Ph.D.

The Real-Time Signal Timing and Traffic Information Project (Tucson Bluetooth Systems Deployment)

PI: Yao-Jan Wu, Ph.D., P.E.

Original PI: Larry Head, Ph.D.

A Real-time Online Decision Support System for Intermodal Passenger Travel

PI: Mengqi Hu, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Development of a Region-Wide Traffic Emission Estimation Platform for Environmental Sustainability Evaluation

PI: Yao-Jan Wu, Ph.D., P.E.

Freeway Travel Time Estimation Using Existing Fixed Traffic Sensors (Phase 1 & 2)

PI: Yao-Jan Wu, Ph.D., P.E.

Co-PI: Zhaozheng Yin, Ph.D. (Phase 2)

Housing and Urban Development (HUD) Grant: Sustainable Communities Regional Planning Grant Program

PI: Sarah L. Coffin, Ph.D.

Co-PI: Yao-Jan Wu, Ph.D., P.E.

Current Projects

Past Projects