1. IRIS Implementation Jim Appleton, Chief
Caltrans Division of Research, Innovation and System Information (DRISI)
July 2016

2. Acknowledgements
University of California, Davis Advanced Highway Maintenance and Construction Technology (AHMCT)
Research Conducted through
Caltrans Division of Traffic Operations
Traffic Safety and Mobility Program Steering Committee
Research Championed by

3. Problem Statement
Most ATMS programs are not well suited for rural areas
Over half of Caltrans 12 Districts have rural locations
California’s rural areas need an affordable, unified ATMS specifically designed for a rural environment

4. Research Performed MnDOT developed an open-source ATMS called IRIS
Caltrans developed new features within IRIS
Caltrans Integrated the enhanced IRIS with existing hardware and software
Caltrans open-source code was transferred to the IRIS partners 1. 2. 3. 4.

5. Implementation Status
Deployed into four Caltrans rural districts
Reduced the amount of traffic management hardware and software
Transitioned support role to a third-party contractor
Enhanced IRS ATMS shared with MnDOT

6. Value of Implementing IRIS

7. Contact Information
Contact Information:
Melissa Clark, Research Project Manager (916) ,
Greg Larson, Traffic Operations Research Manager (916) ,
Website: