Crashes Historic

Boulder County crashes mapped from CDOT data. The crash records have a variety of location information, so multiple methods were used to geolocate them, from using lat/long on CDOT roads to geocoding based on the 'Location_x" fields. The records include all mappable crashes starting from January 1, 2021 and ongoing. Hence, this dataset does not include all crash data received from CDOT. Further, historic crash data can be found in the dataset named “Crashes_Historic”.

Mile markers for select Boulder County roads and CDOT roads. The Boulder County roads were initially selected based on historic precedent, referencing printed maps in the Public Works (formerly Transportation) Department. Markers for more roads may be added after further review. Historic roads included some within municipalities, and mile markers were retained for those roads, regardless of annexations. Mile marker points along County roads were measured using GIS. Each road length was calculated using GIS, depending on accuracy from the Colorado StatePlane coordinate system and then accounting for slope from a 2.5 foot DEM. Markers, every quarter mile, were located along routes using a linear referencing method. Markers on CDOT roads were selected from a feature service owned by them. The selected roads were based on the Road_Map_Roads feature class. Note: Road Maintenance mile posts will be move based on markers in this dataset.

An inventory of all major structures and minor structures on Boulder County owned roads with information including structure ID, structure dimensions, ownership, maintenance, and construction year. This is the primary dataset perpetually maintained by the Boulder County Public Works Department. It includes all records, including archived information when structures are replaced.

This is a dataset representing the electronic traffic signals, fixed electronic signs, and beacons inventory on Boulder County owned roads, which are maintained by the Public Works Traffic Team. It is rare for a new device to be installed, so this dataset remains unchanged for long periods of time. Records are determined by signals, signs and beacons which have an electronic source. Luminate is the primary contractor for maintenance.

General vehicle-specific data from the prior 10 years. Data compiled in this format for the Traffic Safety Data and Analysis website (www.iowadot.gov/tsda). Metadata available here.

Overview The Crash Information (Last 5 Years) dataset provides high-level information about reported crashes recorded in Western Australia during the previous five calendar years. Information includes crash location, date, time, severity and crash characteristics, together with information about the different road user and vehicle types involved. Crash data is recorded in the Integrated Road Information System (IRIS) and is provided for information purposes only. Refresh frequency The dataset is refreshed weekly. Intended use This dataset supports analysis of crash locations, trends, characteristics and outcomes. Refer to the data dictionary when interpreting fields, coded values and summary measures. Interpretation A crash may involve more than one unit type. Unit-type measures must not be added together to calculate the total number of crashes. Heavy trucks are also included within the truck category. Refer to the data dictionary for the definitions of each measure. Documentation The Main Roads Crash Data Dictionary describes the available attributes and provides guidance for understanding, interpreting and analysing the crash information, intersection summary and midblock summary datasets. Main Roads Crash Data Dictionary (PDF) https://mainroads.sharepoint.com/:b:/s/mr-opendata/IQDm4WzPtcQvS5q435Mc-LMlAXTqiR8kbkG3hNlSGl6Rc2Y?e=5UpZaG Related datasets Crash Summary for Midblocks (Last 5 Years) Crash Summary for Intersections (Last 5 Years) Data Governance Roles Data Domain Steward Road Safety Research and Evaluation Manager Data Custodian Asset and Geospatial Information Branch (agi@mainroads.wa.gov.au) Operational Data Steward Information Systems Administrator Licence Notice You are accessing this data pursuant to a Creative Commons Attribution Licence, which includes a disclaimer of warranties and limitation of liability. The data provided under the licence is subject to change. Pursuant to section 3 of the licence, the following notice is to be included when sharing the licensed material: The Commissioner of Main Roads is the creator and owner of the data and licensed material, which is accessed pursuant to a Creative Commons Attribution Licence, which has a disclaimer of warranties and limitation of liability. Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/