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County
Allegheny County Crash Data
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Contains locations and information about every crash incident reported to the police in Allegheny County from 2004 to 2020. Fields include injury severity,... -
2023 Traffic Volume
District of Columbia —
Traffic volume of Roadway Blocks. The dataset contains traffic volume data, created as part of the District of Columbia, Department of Transportation (DDOT) Roads and... -
City
Police Transparency - Calls for Service - All Data (Dataset)
City of Tempe —
The Calls for Service dataset includes police service requests for which patrol officers, traffic officers, bike officers and, on occasion, detectives will be... -
State
NYS Traffic Data Viewer
State of New York —
This data set features a hyperlink to the New York State Department of Transportation’s (NYSDOT) Traffic Data (TD) Viewer web page, which includes a link to the... -
2024 Traffic Volume
District of Columbia —
Traffic volume of Roadway Blocks. The dataset contains traffic volume data, created as part of the District of Columbia, Department of Transportation (DDOT) Roads and... -
City
SDOT GIS Datasets
City of Seattle —
The City of Seattle Transportation GIS Datasets | https://data-seattlecitygis.opendata.arcgis.com/datasets?t=transportation | Lifecycle status: Production | Purpose:... -
City
PA Traffic Counts
City of Philadelphia —
Traffic volumes; measured and calculated amounts of vehicle traffic that travel the sections of road. -
Parking Violations Issued in January 2026
District of Columbia —
Parking citation locations in the District of Columbia. The Vision Zero data contained in this layer pertain to parking violations issued by the District of Columbia's... -
City
2021 Traffic Flow Counts
City of Seattle —
Displays vehicle traffic volumes for arterial streets in Seattle based on spot studies that have been adjusted for seasonal variation. Data is a one time snapshot for... -
Automated Safety Camera (ASC) Locations and Violations Tracker
District of Columbia —
DC's Automated Safety Camera (ASC) program is designed to create safer roadways for all road users in the District of Columbia. As part of our Vision Zero goal, DDOT’s... -
Parking Violations Issued in February 2026
District of Columbia —
Parking citation locations in the District of Columbia. The Vision Zero data contained in this layer pertain to parking violations issued by the District of Columbia's... -
State
MD iMAP: Maryland Annual Average Daily Traffic - Annual Average Daily Traffic (SHA Statewide AADT Lines)
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Traffic monitoring data is a strategic resource for SHA and Maryland's... -
Parking Violations Issued in May 2025
District of Columbia —
Parking citation locations in the District of Columbia. The Vision Zero data contained in this layer pertain to parking violations issued by the District of Columbia's... -
City
DVRPC Traffic Count Viewer
City of Philadelphia —
Traffic Count Viewer is an online mapping application, which users can use to explore traffic count reports in different locations within the Delaware Valley,... -
Bicycle and Pedestrian Automated Counts
District of Columbia —
The District Department of Transportation (DDOT) maintains a system of automated counters to measure the number of people walking and biking. DDOT began installing... -
City
Calls for Service (UCR Reporting Period 2017 - 2021)
City of Tempe —
The Calls for Service dataset includes police service requests for which patrol officers, traffic officers, bike officers and, on occasion, detectives will be... -
Parking Violations Issued in December 2025
District of Columbia —
Parking citation locations in the District of Columbia. The Vision Zero data contained in this layer pertain to parking violations issued by the District of Columbia's... -
Parking Violations Issued in April 2024
District of Columbia —
Parking citation locations in the District of Columbia. The Vision Zero data contained in this layer pertain to parking violations issued by the District of Columbia's... -
City
Vision Zero Dashboard
City of Tempe —
This Vision Zero Dashboard shows City of Tempe crash data from crashes involving fatal or serious injuries from 2012 to the latest available data.Vision Zero is a... -
City
2020 Traffic Flow Counts
City of Seattle —
Displays vehicle traffic volumes for arterial streets in Seattle based on spot studies that have been adjusted for seasonal variation. Data is a one time snapshot for...