Research Notes
Research Notes provide an overview of research in progress to a general audience. Released at the beginning of a research task, the notes describe the research need, methodology, goal, benefits, milestones, and next steps. This is a copy of the Research Notes Content Template.
Advanced Research
- Task 3687 - Support Deployment Of RTCM Broadcasts (PDF) - August 2021
- Task 3747 - MMITSS Phase III Extension for Additional Enhancements (PDF) - August 2021
- Task 3900 - A Roadmap For Flow Smoothing Via Connected And Automated Vehicles(CAV) In California (PDF) - August 2021
- Task 3428 - UTC - Impacts of Connected and Autonomous Vehicles on the Performance of Signalized Networks: A network fundamental diagram approach (PDF) - May 2021
- Task 3614 - Connected Vehicle - Pooled Fund Study- TPF-5(389) (PDF) - May 2021
- Task 3287 - Connected Vehicle Application Development (CVAD) (PDF) - January 2021
- Task 3605 - Caltrans Autonomous Vehicles Industry Survey of Transportation Infrastructure Needs (PDF) - January 2021
- Task 3688 - Utilizing Connected And Automated Vehicles (CAVs) As Floating Sensors For Cooperative Traffic Control And Road Condition Monitoring (PDF) - January 2021
- Task 3717 - Collect Data Using Connected Vehicles (CV) For Real-Time Or Future Use (PDF) - January 2021
- Task 3329 - Research Synthesis and Engagement of the National Center for Sustainable Transportation Caltrans Research Program (PDF) - December 2020
- Task 3500 - Advanced Road Charge Modeling (PDF) - May 2020
- Task 3622 - Yellow Pavement Markings at a Railroad At-Grade Crossing (PDF) - May 2020
- Task 3709 - Application Development For Connected Fleet (PDF) - November 2019
- Task 2620 - Western Road Usage Charging (RUC) Consortium - RUC West, TPF-5(288) (PDF) - October 2019
- Task 3391 - Local Finance And Planning Mechanisms For Transit-Oriented Development, Transit, And Active Transport (PDF) - October 2019
- Task 3631 - Cross-Asset Optimization Model Development Services (PDF) - September 2019
Design/Construction
- Task 3141 - After Study for the Richmond – San Rafael Bridge (PDF) - August 2021
- Task 3286 - Gravel-Bed River Assessment Tool for Improved Resiliency of Engineering Design (PDF) - August 2021
- Task 3302 - Evaluate Zero-Emission Vehicle Charging Stations at Caltrans Facilities (PDF) - August 2021
- Task 3839 - Richmond San-Rafael Bridge and Sir Francis Drake Pilot (Phase II) (PDF) - August 2021
- Task 2896 - Safety of Earthen Stormwater Infiltration Best Management Practices (BMP) Adjacent to Highways (PDF) - March 2021
Environmental
- Task 3783 - Response of San Joaquin Kit Foxes to Road Construction Project Sites: Mitigation Strategies to Minimize Project Delays and Impacts (PDF) - September 2021
- Task 3785 - An Assessment of Paved Road Dust Emissions (Road Dust) Modeling Methods (PDF) - September 2021
- Task 3233 - Fish Passage Engineering Research (PDF) - March 2021
- Task 3263 - Quantify the Effect of Roadside Barrier on Near Road Air Pollutant Dispersion and Concentration (PDF) - March 2021
- Task 3696 - Effects of LED Lighting on Terrestrial Wildlife (PDF) - March 2021
- Task 3697 - Standardizing Environmental DNA Methodologies for Coho Salmon (PDF) - March 2021
- Task 3784 - Evaluating Roadway Trash and Migration to Receiving Water (PDF) - March 2021
Equipment
- Task 3300 - Comparison Of New And Existing Caltrans Hopper Body And Tailgate Sanders (PDF) - September 2021
- Task 3254 - Integrating Zero Emission Vehicles (ZEVs) into the Caltrans Fleet (PDF) - March 2021
- Task 3685 - Review Of Equipment And Accessories For Truck-Mounted Attenuator Trucks (TMA) (PDF) - March 2021
Executive
Geotechnical/Structures
- Task 3030 - Type 15-FBS Breakaway Pole Replacement Development and Testing (PDF) - September 2021
- Task 3169 - Development of a Replacement for Breakaway Supports for Large Roadside Signs and Crash Testing to MASH 2016 Test Level 3 (PDF) - August 2021
- Task 3985 - Liquefaction-Induced Ground Settlement Procedure (PDF) - August 2021
- Task 3031 - Development and Crash Testing of a Type 85 Concrete Post-and-beam Bridge Railing in Compliance with MASH 2016 (PDF) - July 2021
- Task 3170 - Develop MASH Bridge Railing that Satisfies State and Federal Historical Preservation Requirements (PDF) - June 2021
- Task 1780 - Generation-2 Bridge Fragility Relationships, Production Analytical Components (PDF) - April 2021
- Task 2865 - Reliable Post Grouting Techniques to Improve Shaft End-Bearing (PDF) - December 2020
- Task 3668 - Refined Bridge Deck Design and Analysis (PDF) - December 2020
- Task 3671 - Impact of Installation Method on Side Resistance of Permanent Steel Casings (PDF) - December 2020
- Task 3677 - Statistical Variation of Seismic Damage Index (DI) of California Bridges (PDF) - December 2020
- Task 3699 - UCLA Geohazards Program (PDF) - December 2020
- Task 3703 - Bridge Rapid Assessment Center for Extreme Events (PDF) - December 2020
- Task 3745 - PEER - Bridge Program (Pacific Earthquake Research Center) (PDF) - December 2020
- Task 2859 - Enhancement to the Intelligent Construction Data Management System and Implementation, TPF-5(334) (PDF) - August 2020
- Task 3242 - Building Information Modeling (BIM) for Bridges and Structures, TPF-5(372) (PDF) - August 2020
- Task 3261 - Development of Structural Design Guide for Ultra High Performance Concrete Transportation Pooled Fund Program, TPF-5(366) (PDF) - August 2020
- Task 3603 - Evaluation of Lateral Pile Resistance near Mechanically Stabilized Earth (MSE) Walls at a Dedicated Wall Site (Phase 2), TPF-5(381) (PDF) - August 2020
- Task 3032 - Development And Testing Of A MASH Compliant Guardrail Transition And Standardized Buttress (PDF) - February 2020
Maintenance
- Task 3157 - Clear Roads Phase II TPF-5(353) (PDF) - September 2021
- Task 3229 - Avalanche Research Pooled Fund TPF-5(337) (PDF) - September 2021
- Task 3255 - Mountain Pass Road Opening (MPRO) Implementation and Training (PDF) - September 2021
- Task 3258 - Autonomous Maintenance Technology Pooled Fund TPF-5(380) (PDF) - September 2021
- Task 3265 - Evaluation Of Autonomous TMA Trucks For Use In Caltrans' Operations (PDF) - September2021
- Task 3788 - Further Development of a Deployable Integrated Transit Operations System (IDTO), Phase 2.5 (PDF) - September 2021
- Task 3625 - Western Maintenance Partnership - Phase 3 TPF-5(394) (PDF) - August 2021
- Task 3833 - Evaluation of Heavy Equipment Simulator Systems (PDF) - August 2021
- Task 3704 - Improved Maintenance Methods for Bridge Drains and Expansion Joints (PDF) - June 2021
- Task 3919 - Targeted Warning Messages to Protect Moving and Stationary Maintenance Lane Closures (PDF) - June 2021
- Task 3980 - Preliminary Investigation of Thermal Infrared Camera-based Obstacle Detection for Snow Plows and Tow Trucks (PDF) - June 2021
- Task 3130 - Evaluation of Hybrid Electric Street Sweepers (PDF) - March 2021
- Task 3875 - Pilot Testing of Work Zone Intrusion Alarms (PDF) - March 2021
- Task 3183 - Development of Data Collection Systems for Large Scale Particle Image Velocimetry (LSPIV) (PDF) - February 2021
- Task 3611 - Traffic Disruption-Free Bridge Inspection Initiative with Robotic Systems (PDF) - February 2021
- Task 2949 - ShakeCast, Connecting the DOTs (PDF) - December 2020
- Task 3038 - Evaluation Of Work Zome Intrusion Alarms (PDF) - September 2020
- Task 3176 - Research to Support Crack Cleaning Operations in Moving Lane Closures (PDF) - March 2020
Modal
- Task 3657 - Developing segment and intersection-level BLOS measures for the SHS (PDF) - September 2021
- Task 3694 - Caltrans Unmanned Aircraft System (UAS) Safety Management System (PDF) - September 2021
- Task 3757 - Development of Integrated Unmanned Aerial Systems (UAS) Validation Center (PDF) - September 2021
- Task 3902 - Improvement of Transit Automated Passenger Count Data (PDF) - September 2021
- Task 3333 - Quantifying the Effects of Vehicle Electrification Program on Traffic Loads (PDF) - August 2021
- Task 3365 - All Aboard! Easier Transit Travel with Standardized Payments (PDF) - August 2021
- Task 3368 - Integrating Micromobility with Public Transportation (PDF) - August 2021
- Task 3434 - Innovations in Transit: Case Study of the City of Monrovia using Lyft to Increase Transit Ridership (PDF) - August 2021
- Task 3435 - Public Transportation, Transportation Network Companies (TNC) and Active Modes (PDF) - August 2021
- Task 3438 - Large-scale and Long-term Forecasting of Performance Measurement of Public Transportation Systems (PDF) - August 2021
- Task 3441 - Increasing Access, Mobility, and Shelter Opportunities for Disadvantaged Populations: Affordable Housing in Transit-Oriented Developments (PDF) - August 2021
- Task 3507 - Curbside Management: Understanding Impacts of On-Demand Mobility on Public Transit Use and Vulnerable Road Users (PDF) - August 2021
- Task 3514 - Measurement and Prediction of Transit System Performance Using Probe Data Generated through DSRC and non-DSRC Technologies (PDF) - August 2021
- Task 3515 - Advancing Adoption of General Specification Feed (GTFS) Programs in California (PDF) - August 2021
- Task 3519 - Developing Metrics to Measure Equity in Transit or Rail Projects (PDF) - August 2021
- Task 3842 - Zero-Emission Rail Feasibility (PDF) - August 2021
- Task 3509 - City Best Practices to Improve Transit Operations and Safety (PDF) - March 2021
- Task 3513 - Unmanned Aircraft System (UAS) Benefits, Savings Forecast, and Methodology (PDF) - May 2020
Pavement
- Task 3811 - Updated Caltrans Rigid Pavement Design Catalog Using Pavement ME (PDF) - March 2021
- Task 3812 - Monitoring Performance of Concrete Overlay Projects (PDF) - March 2021
- Task 2650 - Improving the Quality of Pavement Surface Distress and Transverse Profile Data Collection and Analysis (PDF) - August 2020
- Task 2746 - Technology Transfer Concrete Consortium (TTCC) (PDF) - August 2020
- Task 2789 - DRISI Support for the Long Term Pavement Performance (LTPP) Program - TPF-5(332) (PDF) - August 2020
- Task 3028 - National Road Research Alliance – NRRA TPF-5 (341) (PDF) - August 2020
- Task 3186 - Asphalt Rubber Binder(PDF) - July 2020
- Task 3187 - Performance Related Testing in Superpave (PDF) - July 2020
- Task 3188 - Performance Related Specifications for AC Long Life Projects (PDF) - July 2020
- Task 3189 - Determining Binder Replacement in High RAP/RAS Mixes (PDF) - July 2020
- Task 3197 - MED-A: Standard Materials (PDF) - July 2020
- Task 3200 - MED-E: ME Algorithms and Field Characterization (PDF) - July 2020
- Task 3195 - Improved Guidance And Specifications For Full-Depth Reclamation (PDF) - November 2019
- Task 3196 - Cold In-Place Recycling Guidance (PDF) - November 2019
- Task 3327 - Tools To Increase Material Efficiency Of Cement (PDF) - November 2019
- Task 3205 - New Smoothness Spec Evaluation (PDF) - September 2019
- Task 3206 - PPRC 17 PRE-A: Complete Early Age and Premature Cracking Evaluation (PDF) - September 2019
Planning/Policy/Programming
- Task 3324 - North American Micromobility Panel (PDF) - August 2021
- Task 3339 - Improving Our Understanding Of Fire Displacement Effects (PDF) - August 2021
- Task 3348 - Monitoring VMT Traveled Reduction Claims in Local Development Review (PDF) - August 2021
- Task 3352 - Exploring the Consumer Market and Environmental Impacts of Microtransit Services in Sacramento and Citrus Heights, California (PDF) - August 2021
- Task 3359 - Studying the Impacts of the Pandemic and Future Mobility Patterns in California During the Post Pandemic COVID-19 Recovery (PDF) - August 2021
- Task 3361 - Bicycling as a Solution to Yosemite Traffic (PDF) - August 2021
- Task 3366 - Coping with the Rise of E-Commerce Generated Home Deliveries Through Innovative Last-Mile Technologies and Strategies (PDF) - August 2021
- Task 3395 - Analysis of Emerging Transportation Trends in California Using Panel Data (Phase Two) (PDF) - August 2021
- Task 3421 - Assessing the Impact of Equity Work in Active and Sustainable Transportation (PDF) - August 2021
- Task 3425 - Ridesharing, Ride-Hailing and Transit Ridership (PDF) - August 2021
- Task 3437 - Displacement and Commuting in the San Francisco Bay Area and Beyond: An Analysis of the Relationship Between the Housing Crises, Displacement, and Long Commutes (PDF) - August 2021
- Task 3453 - Modeling Multi-Modal Mobility in a Coupled Morning-Evening Commute Framework that considers Deadheading and Flexible Pooling (PDF) - August 2021
- Task 3512 - Assessing Public Health Benefits of Replacing Freight Trucks with Cargo Cycles in Last Leg Delivery Trips in Urban Centers (PDF) - August 2021
- Task 3834 - Statewide Data Collection Strategic Plan (PDF) - August 2021
- Task 3894 - Transportation Library Connectivity, TPF-5(442) (PDF) - August 2021
- Task 3291 - Parking Utilization And Site Level Vehicle Miles Traveled (VMT) Database (PDF) - July 2021
- Task 3521 - Investing in California’s Transportation Future: Public Opinion on Critical Needs (PDF) - July 2021
- Task 3439 - The Implications of Freeway Siting in California: An Equity, Geospatial, and Case Study Approach (PDF) - June 2021
- Task 3886 - Feasibility of Mitigation Banks on Regional and State Levels (PDF) - May 2021
- Task 3335 - Projecting Risk Of Highway Flooding Due To Sea Level Rise (PDF) - March 2021
- Task 3351 - Assessment Of Requirements, Costs, And Benefits Of Providing Battery Charging For Battery Electric Heavy-Duty Trucks At Safety Roadside Rest Areas Facilities (PDF) - March 2021
- Task 2900 - Develop and Support Transportation Performance Management Capacity Development Needs for State DOTs, TPF-5(326) (PDF) - February 2021
- Task 2960 - 2016 through 2020 Biennial Asset Management Conference and Training on Implementation Strategies, TPF-5(335) (PDF) - February 2021
- Task 3332 - Cost of Plug-in Electric Vehicle Ownership: Understanding Vehicle Choice and Cost of Ownership Using Behavioral Data (PDF) - January 2021
- Task 3334 - A Before and After Evaluation of Volunteer Ride-hailing and a Mobility as a Service Platform in the San Joaquin Valley (PDF) - January 2021
- Task 3342 - Changes in Mode Share in California (PDF) - January 2021
- Task 3431 - Mobility, Accessibility and Disadvantaged Neighborhoods: Assessing Diversity in Transportation-Related Needs and Opportunities (PDF) - January 2021
- Task 3330 - Case studies on Local Finance and Planning Mechanisms for TOD, Transit, and Active Transport (PDF) - December 2020
- Task 3419 - Local Policy for Better Micromobility (PDF) - December 2020
- Task 3430 - The Effectiveness of Alternative Policy Designs on Electric Vehicle Adoption: Purchase Rebates, Guaranteed Financing and Per-eVMT (PDF) - December 2020
- Task 3321 - Failing Malls (PDF) - May 2020
- Task 3323 - Dock-based and Dockless Bikesharing Systems: Analysis of Equitable Access for Disadvantaged Communities (PDF) - April 2020
- Task 3402 - Measuring Accessibility Changes For Households Moving Away From Rail Transit Areas (PDF) - October 2019
Right Of Way And Land Surveys
- Task 3870 - Research and Development of the Caltrans’ Geospatial Technology Proving Ground (PDF) - June 2021
- Task 3039 - Specifications for Using Small Unmanned Aerial Systems to Generate High Accuracy Mapping (PDF) -March 2021
Rural
- Task 3756 - Responder Study – Interim Phase - Continued Support for Responder Transition (PDF) - August 2021
- Task 2649 - Aurora Program - Aurora Road Weather Information (ARWI) Systems, TPF-5 (290) (PDF) - May 2021
- Task 3241 - Aurora Program - Pooled Fund Study - TPF-5(435) (PDF) - May 2021
- Task 1749 - Professional Capacity Building for Communication Systems Phase V: Intelligent Transportation Systems (ITS) (PDF) - May 2020
- Task 1755 - Demonstrating And Evaluating Intelligent Transportation Systems In Rural Environments (PDF) - October 2019
- Task 3613 - Responder - Reproduction and Deployment Phase (PDF) - May 2019
Transportation Safety And Mobility (TS&M)
- Task 2913 - Evaluation of Low Cost Safety Improvement TPF-5(317) (PDF) -September 2021
- Task 1546 - C1 Loop Detector Reader/Analyzer (C1 Reader) (PDF) - August 2021
- Task 2318 - Highway Safety Manual Implementation (PDF) - August 2021
- Task 2453 - Phase 3: Pedestrian Safety Improvement Program (PDF) - August 2021
- Task 2926 - Evaluating The Performance Of Traffic Detection Devices (PDF) - August 2021
- Task 3057 - Phase 2: Implementation Of Safety Performance Functions For California (PDF) - August 2021
- Task 3230 - Fostering Innovation in Pedestrian and Bicycle Transportation Pooled Fund Study TPF-5(370) (PDF) - August 2021
- Task 3353 - Analysis of Intelligent Vehicle Technologies to Improve Vulnerable Road Users Safety at Signalized Intersections (PDF) - August 2021
- Task 3648 - Wet And Nighttime SPFs Development (PDF) - August 2021
- Task 3712 - System Impact Of Connected And Automated Vehicles: An Application To The I-210 Connected Corridors Pilot (PDF) - August 2021
- Task 3713 - Modernization of Center-to-Center (C2C) Data Communication Standards (PDF) - August 2021
- Task 3781 - Identification of ROR, CCL, MCMC and Wrong-way Collision Locations (PDF) - August 2021
- Task 3896 - Developing A Safe System Approach to Setting Speed Limits (PDF) - August 2021
- Task 3906 - Phase 4: Strategies for Reducing Pedestrian and Bicyclist Injury at the Corridor Level (SMART 4) (PDF) - August 2021
- Task 3911 - Determine Regional Sediment Bulking Methods for Northern California in Support of Wildfire Mitigation (PDF) - August 2021
- Task 3935 - Complete Cities: Bicycle Network Connectivity Evaluation Methodology (PDF) - August 2021
- Task 4007 - Case Studies and Practitioner Support for Developing A Safe System Approach to Setting Speed Limits (PDF) - August 2021
- Task 2951 - Traffic Management Center (TMC) Consortium - Pooled Fund Study - TPF-5(319) (PDF) - May 2021
- Task 3181 - Improved Analysis Methodologies and Strategies for Complete Streets (PDF) - May 2021
- Task 3246 - Graphical User Interface Development for Coordinated Ramp Metering (CRM) System (PDF) - May 2021
- Task 3272 - Enhanced Traffic Signal Performance Measures - Pooled Fund Study - TPF-5(377) (PDF) - May 2021
- Task 3311 - TPF-5(384) - Exploring Non-Traditional Methods to Obtain Vehicle Volume and Class Data (PDF) - May 2021
- Task 3322 - Robust Design, Analysis and Evaluation of Variable Speed Limit Control in a Connected Environment with Uncertainties (PDF) - May 2021
- Task 0373 - High Occupancy Vehicle (HOV)/ Managed Use Lane (MUL) -TPF-5(029) now TPF-5(322) (PDF) - April 2021
- Task 3619 - Combined Variable Speed Limit and Coordinated Ramp Metering Along SR 99 Corridor (PDF) - April 2021
- Task 3706 - Management of Multiple Integrated Corridor Management (ICM) Corridors (PDF) - April 2021
- Task 3427 - Software and Hardware Systems for Autonomous Smart Parking Accommodating both Traditional and Autonomous Vehicles (PDF) - January 2021
- Task 3245 - Evaluation of Different Coordinated Ramp Metering Systems in Caltrans (PDF) - November 2020
- Task 3290 - Development Of Active Transportation Safety Performance Functions In California (PDF) - August 2020
- Task 3253 - Alternative High Occupancy Vehicle (HOV) Lane Operational Strategies for Congestion Mitigation in California (PDF) - May 2020
- Task 3412 - Promises And Projects: Examining Accountability And Flexibility In LOST Expenditure Plans (PDF) - May 2020
- Task 3406 - Evaluation Of Autonomous Vehicles And Smart Technologies For Their Impact On Traffic Safety And Traffic Congestion (PDF) - March 2020
- Task 3501 - Traffic Monitoring For Pedestrian And Cyclist Safety Using Deep Learning And Artificial Intelligence (PDF) - February 2020
- Task 3705 - Developing engineering countermeasures for severely intoxicated drivers (PDF) - November 2019