Division offices
- Office of GIS
- Office of Performance Measures & Data Analysis
- Office of Travel Forecasting & Analysis
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Caltrans Products, Data, and Accomplishments - CRS Maps
- Transportation System Data Governance Plan
- Detailed Transportation Modeling Information
- Caltrans District Map with District Offices and Regions
Featured Maps
- District Map with District Offices Jan 2009
- Caltrans District Map with District Offices and Regions 2009
- CA Road System (CRS) Maps
Contact information:
- For help with data on this page: Contact Us
TSI Frequently Asked Questions (FAQS)
We are the "Pathway to Information" so it is natural that many people come to us to help them find data, whether it is Caltrans' data or data from external sources. We have compiled the list below to help with questions our customers ask us frequently. This is not a comprehensive list. We will be updating it constantly.
Frequently Asked Questions
- Information about State Highway Miles and Vehicle Miles Traveled You may find some of the answers to the following questions at the Traffic Data Branch in Traffic Operations or from HPMS Public Road Data from the HPMS Library.
- Where can I find State Highway miles and Vehicle Miles Traveled (VMT)?
- We need to find the vehicle miles traveled on an hourly basis for some of our city's streets and roads. Local agencies such as Cities and Counties would be the best source for this data. The data we track in Sacramento is more of an overview of the State Highway system.
- Click here to find your City contact information.
- Click here to find your County contact information.
- We need Maps! We need to find roads and what distirict and region they are located in. We need to find maps with functional classificationsand other assorted maps. ODAGIS is a great resource for maps in TSI.
- Where can I find HOV Information in District 07 (Los Angeles Area)?
- Where can I find High Occupancy Vehicle (HOV) Information?
- Where can I find HOV Information in District 07 (Los Angeles Area)?
- District 07 HOV (High Occupancy Vehicle) Lane Information
- Los Angeles Area Travel Times related to HOV information Travel Times Information Map
- Where can I find HOV Information in District 07 (Los Angeles Area)?
- Where can I find HPMS (Highway Performance Monitoring System) Data
- Where can I find Roadway Designation Information?
- Miscellaneous Roadway Designation Information
- Where can I find information about summits and passes in California?
- Where can I find information about scenic highways in California?
- Where can I find information about the National Highway System in California?
- How about information about the Federal National Highway System?
- Where can I find information about Interregional and inter-county roads in California?
- Where can I find a list of Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico?
- Where can I find a list of Named Freeways, Highways, Structures
and Other Appurtenances in California? - Freeway Research Data
- Where can I find more freeway data? Caltrans Performance Measurement System (PeMS) The traffic data displayed on the map is collected in real-time from over 25,000 individual detectors. These sensors span the freeway system across all major metropolitan areas of the State of California.
- Traffic Volumes
- Where can I find a monthly estimate of Vehicle Miles Traveled? The Traffic Data Branch produces a monthly Vehicle Miles of Travel (VMT) report (also called the "Trend" report). This report estimates the number of vehicle miles that motorists traveled on California State Highways. On this same site you will find monthly trends going back to 1972.
- Where can I find traffic related data such as Traffic Volumes [Annual Average Daily Traffic(AADT)], and Ramp Volumes?
- Where can I find Truck Traffic Volumes[Annual Average Daily Truck Traffic (AADTT)]?
- Where can I find Ramp Volumes?
- Where can I find Traffic Volumes for my city?
- Where can I find Traffic Volumes for my county?
- Where can I get Collision counts statewide and by district? From Caltrans Division of Traffic Operations
- Where can I get Traffic counts? From Caltrans Division of Traffic Operations
- Travel Time
- Where can I find Real-time Travel Information?
- Travel Time for Trucks?
- District 07 (Los Angeles Area Specifically Travel Times Information Map
- Where can I find Real-time Travel Information?
- Traffic Operations
- Where can I get Traffic counts? From Caltrans Division of Traffic Operations
- Trucks
- Where can I find truck information?
- Caltrans' Office of Truck Services in Traffic Operations has information on Truck Legal sizes and weights, Truck Highway Network, Oversize/Overweight, Permits, Busses and motorhomes, and truck volumes data.
- Where can I find truck information?
- Where can I find State Highway data?
- Where can I find information on The California Household Travel Survey (CHTS)
- Statewide Modeling
-
Statewide Travel Related Statistics
- Where can I find statewide travel related statistics and technical support for regional travel modeling, demographic analysis, and technical research?
- How can I find the number of vehicles, vehicle miles of travel (VMT), vehicle fuel consumption (VFC), and vehicle fuel economy (VFE) for the state and counties?
- How can I find the legal description of a state highway?
- Is there a listing of overall transportation facts summaries? Yes, check out Caltrans' Quick Facts.
- Can companies purchase a web feed of traffic information from Caltrans?Our website, Caltrans Commercial Wholesale Web Portal, allows access to our raw data that is used by many Information Service Providers. This portal provides a single location to obtain the following information: Vehicle Speed and Volume Traffic Data Closed Circuit Television (CCTV) Video Images. Changeable Message Sign (CMS) Traffic Messages posted on electronic variable message signs Lane Closure System (LCS) Data Roadside Weather Information Systems (RWIS) Weather and Fog Information.
- Other Traffic Data Available for Web Feed ?
- Regional Integration of ITS (RIITS)
- Web site Regional Integration of Intelligent Transportation Systems
- Instructions for data connection: RIITS Data Integration Instructions
- Regional Integration of ITS (RIITS)
- Is there any place to find State-by-State Transportation Facts, Comparisons and Rankings ?
- U.S. Department of Transportation (DOT), the Bureau of Transportation Statistics (BTS), Research and Innovative Technology Administration (RITA)
- Web site: RITA Website
- U.S. Department of Transportation (DOT), the Bureau of Transportation Statistics (BTS), Research and Innovative Technology Administration (RITA)
Updated on April 16, 2012