Current Research Reports
Design/Construction Research
- Development and Testing of a Low-Profile Barrier - April 2012, 7.4 MB
- Capital Outlay Support: Percentage Baseline and Benchmark - June 2011, 1.3 MB
- The Use of Native Plants and Mycorrhizal Fungi for Slope Stabilization and Topsoil
Management - February 2010, 3.52 MB
- Developing Alternative Methods / Techniques for Plant Establishment Under Reduced Irrigation - June 2009, 2.89 MB
- Rest Areas – Reducing Accidents Involving Driver Fatigue - May 2009, 3.12 MB
- Partnership Strategies for Safety Roadside Rest Areas - January 2009, 2.14 MB
- Using Reinforced Native Grass Sod for Biostrips, Bioswales, and Sediment Control - December 2008, 2.36 MB
- Development and Crash Testing of an Aesthetic, See-Through Bridge Rail, Type 90 - December 2008, 5.41 MB
- Use of Organic Amendments for Revegetation of Disturbed Sites with Adverse Soil Conditions - December 2008, 578 kB
- Vegetation Conversion to Desirable Species Along Caltrans Rights-of-Ways - December 2008, 2.52 MB
- Using Reinforced Native Grass Sod for Biostrips, Bioswales, and Sediment Control - December 2008, 3.83 MB
- Development and Crash Testing of an Aesthetic, See-Through Bridge Rail, Type 90 - December 2008, 6.3 MB
- Development of a Safety Management Protocol - September 2008, 660 kB
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Geotechnical/Structures Research
- Water Jetting for the Mitigation of Defects in Drilled Shafts - A Laboratory Investigation of Jetting Effectiveness in Different Deleterious Materials - September 2012, 1.5 MB
- Effect of Vertical Groud Motions on Shear Demand and Capacity in Bridge Columns - March 2012, 7.8 MB
- Nonlinear Load-Deflection Behavior of Abutment Backwalls with Varying Height
and Soil Density - December 2011, 4.6 MB
- Seismic Performance of an I-Girder to Inverted-T Bent Cap Connection - September 2011, 17 MB
- Fatigue Life of Steel Base Plate to Pole Connections for Traffic Structures - July 2011, 3.8 MB
- Long Term Structural Performance Monitoring of Bridges Hardware Maintenance and, Long-term Data Collection/Analysis - June 2011, 1.07 MB
- Creep and Drying Shrinkage of High Performance Concrete for the Skyway Structures of the New San Francisco – Oakland Bay Bridge and Cement Paste - April 2011, 1.8 MB
- Stability of Bridge Column Rebar Cages During Construction - November 2011, 11.8 MB
- Post-Earthquake Traffic Capacity of Modern Bridges in California - March 2010, 9.73 MB
- ShakeCast - Developing a Tool for Rapid Post-Earthquake Response - June 2009, 21.6 MB
- Pile Group Program for Full Material Modeling and Progressive Failure - December 2008, .99 MB
- Development and Validation of the Downhole Freestanding Shear Device (DFSD) for Measuring the Dynamic Properties of Clay - December 2008, 34.7 MB
- The Evaluation of Key System Performance Measures for the Kings Stormwater Crossing Bridge Using a Level IV Non-Destructive Damage Evaluation Method - December 2008, 4.31 MB
- Analysis of Laterally Loaded Long or Intermediate Drilled Shafts of Small or Large Diameter in Layered Soils - December 2008, 2.5 MB
- Vibration-Based Structural Health Monitoring of Highway Bridges - December 2008, 12.1 MB
- Socio-Economic Effect of Seismic Retrofit Implemented on Bridges in the Los Angeles Highway Network - December 2008, 6.34 MB
- Investigation of Flange Failures in Falsework Cap and Sill Beams - December 2008, 3.14 MB
- Load Capacity, Failure Mode and Design Criteria Investigation of Sand Jacks - December 2008, 1.59 MB
- Long-Term Structural Performance Monitoring of Bridges - December 2008, 7.3 MB
- Snaplock Fiber Reinforced Composites Technology Applied to Overhead Sign Structures - December 2008, 3.52 MB
- Placement of Mass Concrete for Cast-in-Place Concrete Piling - December 2008, 1.74 MB
- Effect of Fabrication Procedures and Weld Melt-Through on Fatigue Resistance of Orthotropic Steel Deck Welds - December 2008, 6.73 MB
- Evaluation and Implementation of an Improved Methodology for Earthquake Ground Response Analysis - December 2008, 18.9 MB
- End-User Interest in Geotechnical Data Management Systems - November 2008, 10.1 MB
- Investigation of Integrity and Effectiveness of RC Bridge Deck Rehabilitation Using CFRP Composites - November 2008, 4.13 MB
- Visual Inspection & Capacity Assessment of Earthquake Damaged Reinforced Concrete Bridge Elements - November 2008, 34.2 MB
- Investigation of Integrity and Effectiveness of RC Bridge Deck Rehabilitation Using CFRP Composites - November 2008, 34.2 MB
- Development of Guidelines for Incorporation of Vertical Ground Motion Effects in Seismic Design of Highway Bridges - May 2008, 4.0 MB
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Maintenance Research
- Scientific Evaluation of the ArmorGuard Mobile Barrier System - June. 2011, 1.3 MB
- Development of the Sealzall Machine - Upgrade to the TTLS (Pavement Crack Sealer) - September 2010, 1.23 MB
- Balsi Beam: Technology Transfer and Deployment - July 2010, 2.9 MB
- Investigation of Ground-Penetrating Radar (GPR) Technology for the
Health of Bridge Decks: Phase I – Feasibility Testing - September 2009, 6.6 MB
- Identifying Excessive Vehicle Idling and Opportunities for Off-Road Fuel Tax Credits for Stationary Operations in the Caltrans Fleet - Phase 1 - September 2009, 2.6 MB
- Carrier Phase Differential GPS aided INS for Snowplow Guidance - December 2008, 1.5 MB
- Applying Safety Improvements to Fleet Vehicles - December 2008, 8.8 MB
- Development of Vegetation Cutting Tool Attachments for the Automated Roadway Debris Vacuum - December 2008, 6.81 MB
- Intelligent Herbicide Application System for Reduced Herbicide Vegetation Control Phase II - Commercialization - December 2008, 26.8 MB
- Homeland Security: Keeping Abreast of Transportation Security Technologies and Best Practices - December 2008, 1.0 MB
- Event Driven Video Monitoring for Driver Training: Evaluation of Pilot Project - October 2008, 13.1 MB
- Caltrans Bridge Inspection Aerial Robot - October 2008, 0.98 MB
- Alternatives to Labor Intensive Tasks in Roadside Vegetation
Maintenance - June 2008, 7.1 MB
- Enhancement & Field Evaluation of an Advanced Clearance Measurement
System for Highway Structures, Including Generation of Clearance Diagrams - June 2008, 1.4 MB
- Workzone Safety Improvements through Enhanced Warning Signal Devices - January 2008, 2.7MB
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Modal Research
- Tool Development to Evaluate the Performance of Intermodal Connectivity (EPIC) to Improve Public Transportation – Phase 2B - August 2012, 2.7 MB
- Applying Safety Treatments To Rail-Highway At-Grade Crossings - March 2012, 2.5 MB
- Smart Parking Value Pricing Pilot Project (VPPP) on the COASTER
Commuter Rail Line in San Diego, California - March 2012, 4.4 MB
- Online Transit Trip Planner for Small Agencies Using Google Transit:
Final Deployment Package - September 2011, 36.8 MB
- Development of an Integrated Adaptive Transit Signal Priority (ATSP) and Dynamic
Passenger Information (DPI) System - August 2011, 3.1 MB
- State and Federal Project Development Procedures for Bus Rapid Transit: Managing Differences and Reducing Implementation Delays - August 2011, 745 kB
- Assess the Trade-Offs between People Throughput and Level of Service Degradation in the Conversion of a Mixed Flow Lane to a Bus Only Lane on US 101 - May 2011, 3.6 MB
- Caltrans District 4 Employee Bikesharing Pilot Program - February 2011, 1.3 MB
- EasyConnect II: Integrating Transportation, Information, and Energy Technologies at the
Pleasant Hill BART Transit Oriented Development - November 2009, 9.5 MB
- Driver Behavior at Rail Crossings: Cost-Effective Improvements to Increase Driver Safety at Public At-Grade Rail-Highway Crossings in California - March 2009, 12.7 MB
- Field Demonstration and Tests of Lane- Assist/Guidance and Precision
Docking Technology - January 2009, 3.4 MB
- Airport Managers' Guide for the Maintenance of Asphalt Pavements of General Aviation Airports - January 2009, 3.3 MB
- Emergency EDAPTS Retainer Support - December 2008, 980 kB
- Toward Deployment of Adaptive Transit Signal Priority (ATSP) - October 2008, 4.2 MB
- San Joaquin Rail Corridor Crossing Survey - June 2008, 1.3 MB
- Transit Signal Priority Research Tools - May 2008, 4.5 MB
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Division of Research and Innovation Research
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Pavement Research
- Guidelines for the Stabilization of Subgrade Soils in California - September 2011, 3.5 MB
- Quieter Pavement Research: Concrete Pavement Tire Noise - May 2011, 21.4 MB
- Investigation of Noise and Durability Performance Trends for Asphaltic Pavement Surface Types: Four-Year Results - April 2011, 3.6 MB
- An Evaluation of Crack, Seat and Overlay in California (Phase II) - January 2011, 821 kB
- Preliminary Project Study Report for Shasta 299, PM 51.8 – 60 - November 2010, 2.8 MB
- Development of Bus Rapid Transit Performance Assessment Guide Tool - September 2010, 561 kB
- Pavement Life Cycle Assessment Workshop: Discussion Summary and Guidelines - May 2010, 1.7 MB
- Noise Barrier Design: Danish and Some European Examples - May 2010, 8.5 MB
- Highway Noise Abatement: Planning Tools and Danish Examples - May 2010, 4.5 MB
- Temperature Influence on Road Traffic Noise: Californian OBSI Measurement Study - May 2010, 2.5 MB
- Acoustic Aging of Asphalt Pavements: A Californian/Danish Comparison - May 2010, 1.9 MB
- Warm-Mix Asphalt Study: Laboratory Test Results for AkzoNobel Rediset WMX - April 2010, 1.4 MB
- Mn/ROAD Case Study Using CalBack and CalME - August 2009, 1.3 MB
- Friction Testing of Pavement Preservation Treatments: Friction Measurements on Fog Seal Trials Using Six
Rejuvenators, State Route KER58 - July 2009, 264 kB
- Friction Testing of Pavement Preservation Treatments: Temperature Corrections and Operator/
Machine Variability - April 2009, 216 kB
- Friction Testing of Pavement Preservation Treatments: Temperature Corrections and Operator/Machine
Variability - Part 3 - April 2009, 1.2 MB
- Full-Depth Pavement Reclamation with Foamed Asphalt in California: Guidelines for Project Selection,
Design, and Construction - March 2009, 4.1 MB
- Summary Report: The Phase 1 I-710 Freeway Rehabilitation Project: Initial Design (1999) to Performance
after Five Years of Traffic (2009) - February 2009, 2.5 MB
- Investigation of Noise and Durability Performance Trends for Asphaltic Pavement Surface Types: Three-Year Results - January 2009, 4.4 MB
- Development of Thin HMA Overlay Crack Initiation and Progression Probabilistic Models - December 2008, 2.2 MB
- Pavement Performance Evaluation, Phase II - Data Collection - December 2008, 3 MB
- Alligator Cracking Performance and Life-Cycle Cost Analysis of Pavement Preservation Treatments - October 2008, 6.7 MB
- Development of an Empirical-Mechanistic Model of Overlay Crack Progression using Data from the
Washington State PMS Database - October 2008, 577 kB
- Development of Empirical-Mechanistic Pavement Performance Models using Data from the Washington
State PMS Database - October 2008, 559 kB
- Investigation of Noise, Durability, Permeability, and Friction Performance Trends for Asphalt
Pavement Surface Types: First- and Second-Year Results - August 2008, 3.9 MB
- Investigation of Noise, Durability, Permeability, and Friction Performance Trends for Asphalt Pavement
Surface Types: First- and Second-Year Results: Summary Report - August 2008, 499 kB
- Warm-Mix Asphalt Study: Test Track Construction and First-Level Analysis of Phase 1 HVS and
Laboratory Testing - July 2008, 7.1 MB
- Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report - April 2008, 8.4 MB
- Construction and Traffic Analysis of Interstate 15 (Devore II) Concrete Pavement Reconstruction
Project - March 2008, 2.9 MB
- Estimating Wet-Pavement Exposure with Precipitation Data - March 2008, 1.3 MB
- Investigation of Noise, Durability, Permeability, and Friction Performance Trends for Asphaltic Pavement
Surface Types: First- and Second-Year Results - February 2008, 2.8 MB
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- Software Tools for Sharing and Integrating GIS Data - June 2012, 124 kB
- Measuring and Modeling PM Emissions from Heavy-Duty Construction Equipment - January 2012, 11.4 MB
- Evaluation of the In-Field Emissions Impacts of Biodiesel fuels in
Construction Equipment and Applications Under Actual In-use Conditions - March 2010, 546 kB
- California PECAS Model Development - December 2009, 1.5 MB
- Achieving California's Land Use and Transportation Greenhouse Gas Emission Targets Under AB 32: An Exploration of Potential Policy Processes and Mechanism - June 2009, 22 MB
- Trip-Generation Rates for Urban Infill Land Uses in California Phase 2 - June 2009, 8.4 MB
- Evaluating the Emissions from Heavy-Duty Construction Equipment - December 2008, 9.2 MB
- A Statewide Optimal Resource Allocation Tool Using Geographic Information Systems, Spatial Analysis, and Regression Methods - October 2008, 1.0 MB
- ITS-Davis – Hydrogen Pathways Program - July 2008, 3.4 MB
- Trip-Generation Rates for Urban Infill Land Uses in California Phase 1 - April 2008, 6.9 MB
- Connecting Transportation Decision Making with Responsible Land Use: State and Regional Policies, Programs, and Incentives - February 2008, 1.5 MB
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- PROBEX: Data Exchanges for Enhanced Traffic Reconstruction - August 2012, 2.5 MB
- Evaluation of Methods to Reduce Speeds in Work Zones - June 2012, 3.6 MB
- Evaluation of an Animal Warning System Effectiveness - Phase Two - June 2012, 5 MB
- Monitoring and Improving Roadway Surface Conditions For Safe Driving Environment and
Sustainable Infrastructure - June 2012, 5.52 MB
- The Connected Traveler Project: A Component of the SafeTrip-21 Initiative - May 2012, 536 kB
- Evaluating iCone Speed Values against Dual-Loop Speed Values - April 2012, 5.1 MB
- Deliver a Set of Tools to Resolving Bad Inductive Loops and Correcting Bad Data - April 2012, 10.8 MB
- Experimental Evaluation of the Continuous Risk Profile (CRP) Approach to the Current Caltrans Methodology for High Collision Concentration Location Identification - March 2012, 3.8 MB
- Upgrade the Video Vehicle Detector Verification System (V2DVS) - March 2012, 6.8 MB
- Deployment of a Tool for Measuring Freeway Safety Performance - December 2011, 3.1 MB
- High Occupancy Vehicle (HOV) Lane Management System - December 2011, 2.2 MB
- DSRC Standards Testing: 5MHz Band-plan Analysis, Clustered System
Architecture and Communication in Emergency Scenarios - December 2011, 2.6 MB
- Field Test Implementation of Queue Control - December 2011, 2.9 MB
- Mobile Millennium: GPS Mobile Phones as Traffic Probes,
California Networked Traveler - Safe Trip 21 - Phase II - September 2011, 12.2 MB
- Evaluation of Alternative Construction Plans for I-5 Closure in Downtown Sacramento - September 2011, 2.5 MB
- Integrated Work Zone Traffic Management - September 2011, 5.0 MB
- Strategies for Reducing Pedestrian and Bicyclist Injury at the Corridor Level - July 2011, 1.7 MB
- Development and Evaluation of Selected Mobility Applications for VII - July 2011, 1.6 MB
- Implementation and Evaluation of Automated Vehicle Occupancy Verification - May 2011, 5.4 MB
- AHMCT Intelligent Roadway Information System (IRIS) Technical Support and Testing - April 2011, 2.4 MB
- SafeTrip 21 Initiative: Networked Traveler Foresighted Driving Field Experiment - April 2011, 3.9 MB
- Diagnosing Chronic Errors in Freeway Loop Detectors from Existing Field hardware - March 2011, 5.3 MB
- Methods for Identifying High Collision Concentration Locations (HCCL) for Potential Safety Improvements - Phase II - January 2011, 2.0 MB
- Mobile Century Final Report
for TO 1021 and TO 1029:
A Traffic Sensing Field Experiment - December 2010, 44.1 MB
- Final Evaluation Report: California Deployment of Portable Traffic-Monitoring Devices - June 2010, 1.9 MB
- Effectiveness of Adaptive Traffic Control for Arterial Signal Management: Modeling Results - June 2010, 840 kB
- An Evaluation of the Consequences and Effectiveness of Using Highway Changeable Message
Signs for Safety Campaigns - March 2010, 1.8 MB
- Statewide Travel Times - February 2010, 5.3 MB
- On-Ramp Metering and Commuter Delay: A Before and After Study - December 2009, 835 kB
- Travel Times on Changeable Message Signs - September 2009, 8.0 MB
- Portable Advanced Traveler Information Systems - September 2009, 6.7 MB
- Improving Performance of Coordinated Signal Control Systems Using Signal and Loop Data - September 2009, 6.3 MB
- 2009 California Highway Safety Improvement Program 5 Percent Report - August 2009, 363 kB
- Highway Conditions and Traffic Information Services in California - A Market Services Analysis - May 2009, 2.3 MB
- Animal-Vehicle Crash Mitigation Using Advanced Technology. Phase II: System Effectiveness and System Acceptance - March 2009, 3.5 MB
- Methods to Address Headlight Glare - March 2009, 2.9 MB
- Optimal Use of Changeable Message Signs for
Displaying Travel Times - March 2009, 2.1 MB
- Early Warning System for Bridge Hits by Tall Load Vehicles - December 2008, 2.1 MB
- Assessment of the Applicability of Cooperative Vehicle-Highway Automation Systems (CVHAS) to Bus Transit and Intermodal Freight: Case Study Feasibility Analyses in the Metropolitan Chicago Region - December 2008, 6.23 MB
- Commercially-off-the-Shelf (COTS) and Emerging Technologies Sensor Testing and Evaluation - December 2008, 959 kB
- Integrated Multi-Channel Vehicle-Vehicle and Vehicle-Roadside Communications for ITS - December 2008, 21.1 MB
- Expediting Vehicle Infrastructure Integration (EVII): Where the Rubber Meets (and Talks to) the Road - December 2008, 2.3 MB
- Compliance Crash Testing of a Type 60K Terminous - December 2008, 1.7 MB
- Crashworthiness Testing of a Portable Maintenance Work-Zone Barrier - December 2008, 3.0 MB
- Development of Staking Configurations for K-Rail - December 2008, 4.9 MB
- Evaluation of Commercial Video-Based Intersection Signal Actuation Systems - December 2008, 700 kB
- ITS Pilot Project Demonstration Program Summary Report - December 2008, 5.29 MB
- Study of Integrated Corridor Management
for San Francisco Bay Area I-880 Corridor - November 2008, 2.1 MB
- Overview of Rural Intersection Crashes at Candidate
Intersections for the Intersection Decision Support (IDS)
System - November 2008, 556 kB
- Improve Freq Jacroscopic Freeway Analysis Model - July 2008, 333 kB
- On the Formulation and Solution of an Emergency Routing Problem - March 2008, 322 kB
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Right of Way and Land Surveys Research
- Efficient Routing for Safety Applications in Vehicular Networks - March 2009, 551 kB
- Applying Smart Growth Principles and Applying Strategies to Resolving Land Use Conflicts Around Airports - September 2008, 24.8 MB
- Cargo Security Early Warning System - The Application of Neural Networks to Detect Cargoes with Potential Security Fraud - August 2008, 696 kB
- An Ambit-Based Activity Model for Evaluating Green House Gas Emission Reduction Policies - August 2008, 1.1 MB
- Creating an Educational Network in California to Assess and Address its Future Transportation Education Challenges - July 2008, 500 kB
- On Sequencing of Container Deliveries to Over-the-Road Trucks from Yard Stacks - July 2008, 229 kB
- Reducing Diesel NOx and PM Emissions of Diesel Buses and Trucks - July 2008, 887 kB
- Neighborhood Crime and Travel Behavior: An Investigation of the Influence of Neighborhood Crime Rates on Mode Choice - April 2008, 1.2 MB
- Impact of New Diesel Fuels Used in Port Operations on Subsurface Quality - April 2008, 358 kB
- Investigation of Noise, Durability, Permeability, and Friction Performance Trends for Asphaltic Pavement Surface Types: First- and Second-Year Results - February 2008, 5.8 MB
- Better Delivery/Pick Up Routes in the Presence of Uncertainty - January 2008, 5.2 MB
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