Annual average daily traffic is the total volume for the year divided by 365 days. The traffic count year is from October 1st through September 30th. Very few locations in California are actually counted continuously. Traffic Counting is generally performed by electronic counting instruments moved from location throughout the State in a program of continuous traffic count sampling. The resulting counts are adjusted to an estimate of annual average daily traffic by compensating for seasonal influence, weekly variation and other variables which may be present. Annual ADT is necessary for presenting a statewide picture of traffic flow, evaluating traffic trends, computing accident rates. planning and designing highways and other purposes.Traffic Census Program Page

Annual average daily traffic is the total volume for the year divided by 365 days. The truck count year is from October 1st through September 30th. Very few locations in California are actually counted continuously. Truck Counting is generally performed by electronic counting instruments moved from location throughout the State in a program of continuous traffic count sampling. The resulting counts are adjusted to an estimate of annual average daily traffic by compensating for seasonal influence, weekly variation and other variables which may be present. Annual ADT is necessary for presenting a statewide picture of traffic flow, evaluating traffic trends, computing accident rates. planning and designing highways and other purposes.

This traffic volumes feature class containing Traffic Volumes (also known as Traffic Counts) on California state highway network created from AADT excel spreadsheet file maintained by Caltrans, Division of Traffic Operations.Annual average daily traffic is the total volume for the year divided by 365 days. The traffic count year is from October 1st through September 30th. Very few locations in California are actually counted continuously. Traffic Counting is generally performed by electronic counting instruments moved from location throughout the State in a program of continuous traffic count sampling. The resulting counts are adjusted to an estimate of annual average daily traffic by compensating for seasonal influence, weekly variation and other variables which may be present. Annual ADT is necessary for presenting a statewide picture of traffic flow, evaluating traffic trends, computing accident rates, planning and designing highways and other purposes.

This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.

This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.

This dataset provides annual traffic counts from Caltrans, updated in real time via the California Open Data API.

Major Highways: Major highways used to analyze transportation needs and alternatives for the Lake Tahoe Region
County Roads: County roads used to analyze transportation needs and alternatives for the Lake Tahoe Region
Streets: Geocoded streets (The best available streets layer for the Lake Tahoe region)
Existing Bike Trails: Bikeway class designation.
Proposed Bike Trails: 2017 Proposed active transportation network with class, name, segment length, and constrained/unconstrained plan type
Bike Trails 75ft buffer: 2017 - 75 foot buffer around existing active transportation network segments
Traffic Analysis Zones (TAZ): The purpose for these boundaries is to provide zones to analyze transportation needs and alternatives for the Lake Tahoe Region to meet the Tahoe Regional Planning Agency thresholds, as well as conform to local, state, and federal regulations.
Bike and Ped Counter: Bicycle and pedestrian counts obtained from TRPA's Trafx/EcoVision automated counters as of November 2017
Vehicle Collisions and Injuries on Highways: Vehicle collisions and injuries on highways reported by NDOT and CalTrans. Retrieved October 2017.
Traffic volumes reported by CalTrans and NDOT: Traffic volumes reported by CalTrans and NDOT. Measured by average annual daily traffic (AADT). Data retrieved October 2017.

VITAL SIGNS INDICATOR Traffic Volumes at Regional Gateways (T6)

FULL MEASURE NAME Daily vehicles along entry/exit points to the Bay Area

LAST UPDATED April 2020

DESCRIPTION Traffic volumes at regional gateways refers to the number of vehicles crossing county boundaries on a typical day to enter or exit the nine-county San Francisco Bay Area.

DATA SOURCE California Department of Transportation: Annual Traffic Volume Reports http://traffic-counts.dot.ca.gov

CONTACT INFORMATION vitalsigns.info@mtc.ca.gov

METHODOLOGY NOTES (across all datasets for this indicator) Traffic counts reflect average annual daily traffic (AADT) counts at all state highway gateway points - entry/exit points to the nine-county San Francisco Bay Area. When the county line data was not available in the traffic volume reports, the closest intersection or interchange was used as a proxy for traffic volumes at the county line.

The census count of vehicles on city streets is normally reported in the form of Average Daily Traffic (ADT) counts. These counts provide a good estimate for the actual number of vehicles on an average weekday at select street segments. Specific block segments are selected for a count because they are deemed as representative of a larger segment on the same roadway. ADT counts are used by transportation engineers, economists, real estate agents, planners, and others professionals for planning and operational analysis. The frequency for each count varies depending on City staff’s needs for analysis in any given area. This report covers the counts taken in our City during the past 12 years approximately.

PEMS03

The PeMS traffic datasets have been collected by the California Transportation (Caltrans) agency for 30-second granularity, and the raw and aggregated data are publicly available on their website (https://pems.dot.ca.gov/?dnode=Clearinghouse&type=meta&district_id=7&submit=Submit). We have gathered 5-minute aggregated vehicular traffic state (i.e traffic speed) dataset for district four and seven of California for 2022.

We have used Bing Distance Matrix API to compute a driving distance between each sensor. The API can be used to compute a driving distance between a single source or multiple sources and source or multiple destinations at once.

In addition, the weather datasets have been collected from https://www.visualcrossing.com/weather/weather-data-services and the datasets have one-hour granularity, and we have only removed some of the unnecessary columns.

Highway traffic datasets PeMSD8 from California. The datasets are collected by the Caltrans Performance Measurement System (PeMS) (Chen et al., 2001) in real time every 30 seconds. The traffic data is aggregated into every 5-minute interval from the raw data. The system has more than 39,000 detectors deployed on highways in major metropolitan areas of California. Geographic information about the sensor stations is recorded in the datasets. There are three types of traffic measurements: total flow, average speed, and average occupancy.

PEMS-08: 170 detectors July to Augest in 2016 3 features: flow, occupy, speed.

This dataset supports the research detailed in "A Hybrid Deep Learning Approach with GEH-based Loss Function and Evaluation Metric for Multi-location Traffic Flow Forecasting" containing traffic flow measurements from Stockton and Oakland, California. The dataset is organized into four sub-folders: 'Oakland-raw', 'Oakland-processed', 'Stockton-raw', and 'Stockton-processed'. The raw data folders ('Oakland-raw' and 'Stockton-raw') include the initial traffic measurements as collected directly from traffic sensors, providing a granular view of traffic patterns without any modifications. The processed data folders ('Oakland-processed' and 'Stockton-processed') contain data that has been cleaned and structured, making it more suitable for analytical tasks and modeling purposes.

Major Highways: Major highways used to analyze transportation needs and alternatives for the Lake Tahoe RegionCounty Roads: County roads used to analyze transportation needs and alternatives for the Lake Tahoe RegionStreets: Geocoded streets (The best available streets layer for the Lake Tahoe region)Existing Bike Trails: Bikeway class designation. Proposed Bike Trails: 2017 Proposed active transportation network with class, name, segment length, and constrained/unconstrained plan typeBike Trails 75ft buffer: 2017 - 75 foot buffer around existing active transportation network segmentsTraffic Analysis Zones (TAZ): The purpose for these boundaries is to provide zones to analyze transportation needs and alternatives for the Lake Tahoe Region to meet the Tahoe Regional Planning Agency thresholds, as well as conform to local, state, and federal regulations. Bike and Ped Counter: Bicycle and pedestrian counts obtained from TRPA's Trafx/EcoVision automated counters as of November 2017Vehicle Collisions and Injuries on Highways: Vehicle collisions and injuries on highways reported by NDOT and CalTrans. Retrieved October 2017. Traffic volumes reported by CalTrans and NDOT: Traffic volumes reported by CalTrans and NDOT. Measured by average annual daily traffic (AADT). Data retrieved October 2017. Limebike trip: Limebike trips and users from the Summer/Fall 2017 South Shore Limebike pilot project2020 Regional Transportation Plan Projects: https://tahoempo.org/ActiveTransportationPlan/docs/appendices/Appendix%20H_Project%20Lists.pdf

Major Highways: Major highways used to analyze transportation needs and alternatives for the Lake Tahoe Region
County Roads: County roads used to analyze transportation needs and alternatives for the Lake Tahoe Region
Streets: Geocoded streets (The best available streets layer for the Lake Tahoe region)
Existing Bike Trails: Bikeway class designation.
Proposed Bike Trails: 2017 Proposed active transportation network with class, name, segment length, and constrained/unconstrained plan type
Bike Trails 75ft buffer: 2017 - 75 foot buffer around existing active transportation network segments
Traffic Analysis Zones (TAZ): The purpose for these boundaries is to provide zones to analyze transportation needs and alternatives for the Lake Tahoe Region to meet the Tahoe Regional Planning Agency thresholds, as well as conform to local, state, and federal regulations.
Bike and Ped Counter: Bicycle and pedestrian counts obtained from TRPA's Trafx/EcoVision automated counters as of November 2017
Vehicle Collisions and Injuries on Highways: Vehicle collisions and injuries on highways reported by NDOT and CalTrans. Retrieved October 2017.
Traffic volumes reported by CalTrans and NDOT: Traffic volumes reported by CalTrans and NDOT. Measured by average annual daily traffic (AADT). Data retrieved October 2017.

Annual average daily truck traffic is the total truck traffic volume divided by 365 days. Truck counting is done throughout the state in a program of continuous truck count sampling. The sampling includes a partial day, 24-hour, 7-day and continuous vehicle classification counts. The partial day and 24-hour counts are usually made on high volume, urban highways. The 7-day counts are made on low volume, rural highways. The counts are usually taken only once in the year. About one-sixth of the locations are counted annually. The resulting counts are adjusted to an estimate of annual average daily truck traffic by compensating for seasonal influence, weekly variation, and other variables that may be present. Annual average daily truck traffic is necessary for presenting a statewide picture of truck flow, evaluating truck trends, planning and designing highways and for other purposes. Truck traffic is classified by number of axles. The two-axle class includes 11/2-ton trucks with dual rear tires and excludes pickups and vans with only four tires. Total vehicle AADT for the same year is taken from the Traffic Volumes on California State Highways booklet also published by the California Department of Transportation.Reference Link: https://www.dot.ca.gov/hq/traffops/saferesr/trafdata/index.htm

Major Highways - Used to analyze transportation needs and alternatives for the Lake Tahoe Region.County Roads - Used to analyze transportation needs and alternatives for the Lake Tahoe Region.Streets - Geocoded streets (The best available streets layer for the Lake Tahoe region).Existing Active Transportation Facilities - Bikeway class designation.Existing Active Transportation Facilities - 75ft buffer - A 75 foot buffer around existing active transportation network segments. Proposed Active Transportation Facilities - Proposed Bikeway class designation.Proposed Active Transportation Facilities - 75ft buffer - A 75 foot buffer around proposed active transportation network segments. Tahoe Transit Routes (Consolidated) - Transit routes throughout the Lake Tahoe Region.Microtransit Service Areas - Area of service covered by Lake Link and TART Connect.2020 Regional Transportation Plan Projects - Plan Projects (link to plan)Traffic Analysis Zones (TAZ) - The purpose for these boundaries is to provide zones to analyze transportation needs and alternatives for the Lake Tahoe Region to meet the Tahoe Regional Planning Agency thresholds, as well as conform to local, state, and federal regulations.Tahoe Bus Stops - Transit stops throughout the Lake Tahoe Region.Traffic Volumes – Crashes as reported by CalTrans and NDOT. Measured by average annual daily traffic (AADT).Tahoe Crashes - Collision data reported by CalTrans and NDOT.

Spatial Reference: NAD83 / UTM zone 10N (26910) Area Covered: Tahoe Basin, Nevada, California

This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.

Major Highways - Used to analyze transportation needs and alternatives for the Lake Tahoe Region.County Roads - Used to analyze transportation needs and alternatives for the Lake Tahoe Region.Streets - Geocoded streets (The best available streets layer for the Lake Tahoe region).Existing Active Transportation Facilities - Bikeway class designation.Existing Active Transportation Facilities - 75ft buffer - A 75 foot buffer around existing active transportation network segments. Proposed Active Transportation Facilities - Proposed Bikeway class designation.Proposed Active Transportation Facilities - 75ft buffer - A 75 foot buffer around proposed active transportation network segments. Tahoe Transit Routes (Consolidated) - Transit routes throughout the Lake Tahoe Region.Microtransit Service Areas - Area of service covered by Lake Link and TART Connect.2020 Regional Transportation Plan Projects - Plan Projects (link to plan)Traffic Analysis Zones (TAZ) - The purpose for these boundaries is to provide zones to analyze transportation needs and alternatives for the Lake Tahoe Region to meet the Tahoe Regional Planning Agency thresholds, as well as conform to local, state, and federal regulations.Tahoe Bus Stops - Transit stops throughout the Lake Tahoe Region.Traffic Volumes – Crashes as reported by CalTrans and NDOT. Measured by average annual daily traffic (AADT).Tahoe Crashes - Collision data reported by CalTrans and NDOT.

Spatial Reference: NAD83 / UTM zone 10N (26910) Area Covered: Tahoe Basin, Nevada, California