he TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. Census blocks are relatively small in area; for example, a block in a city bounded by streets. However, census blocks in remote areas are often large and irregular and may even be many square miles in area. A common misunderstanding is that data users think census blocks are used geographically to build all other census geographic areas, rather all other census geographic areas are updated and then used as the primary constraints, along with roads and water features, to delineate the tabulation blocks. As a result, all 2010 Census blocks nest within every other 2010 Census geographic area, so that Census Bureau statistical data can be tabulated at the block level and aggregated up to the appropriate geographic areas. Census blocks cover all territory in the United States, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). Blocks are the smallest geographic areas for which the Census Bureau publishes data from the decennial census. A block may consist of one or more faces.

Growth Pattern

10 years of Emergency Medical Services calls to service in South Seattle showing locations of injuries relating to pedestrians vs. vehicle injuries and bicycle injuries (bicycle injuries included may have no relation to other motor vehicles). Two levels of EMS services are included: Advanced Life Support (ALS) or Basic Life Support (BLS). The data fields included provide insight into the severity of injuries and outcomes of EMS assistance or transport of a patient. For example, an injury may be escalated to ALS transport to a trauma center due to higher severity of injury. Attached to this email is a copy of the 'data dictionary' which describes the data.

Underlying data for the KC Water Taxi Watch (http://www.wsdot.com/ferries/vesselwatch/vesselskcm.ashx) from WSDOT.

Traffic cameras in Seattle owned by SDOT and WSDOT

A wide range of GIS data from King County.

10 years of Emergency Medical Services calls to service in South Seattle showing locations of injuries relating to pedestrians vs. vehicle injuries and bicycle injuries (bicycle injuries included may have no relation to other motor vehicles). Two levels of EMS services are included: Advanced Life Support (ALS) or Basic Life Support (BLS). The data fields included provide insight into the severity of injuries and outcomes of EMS assistance or transport of a patient. For example, an injury may be escalated to ALS transport to a trauma center due to higher severity of injury. Attached to this email is a copy of the 'data dictionary' which describes the data.

Commute Trip Reduction Surveys data from 2007-08. See attachments for metadata.

This is a user-generated database of Pronto interstation bike routes.