Welcome to MassDOT Crash Portal

Providing crash data and the ability to analyze this information will encourage public safety initiatives and awareness. It is primarily for this reason that this tool has been made available. Analysis of the crash data is a complex undertaking, one that may require trial and error on the part of users. It is suggested you approach this information as a tool rather than an end in itself and that you cross-check your results with other data sources.

The crash data are compiled by the MassDOT Registry of Motor Vehicles (Registry) based on crash reports submitted by State and local police, other police departments and prior to 2011 from operators (drivers of vehicles involved in crashes). Some of the information in these reports has been aggregated and some may have been incorrectly or incompletely reported to us. Therefore, MassDOT makes no representation as to the accuracy or completeness of the crash records or the data collected from them. Furthermore, the data contained in the web-based crash report tool are not an official record of what transpired in a particular crash or for a particular crash type. If a user is interested in an official copy of a crash report, contact the Registry (http://www.mass.gov/rmv/).

The data posted on this website, including crash records and other reports, are collected for the purpose of identifying, evaluating, or planning the safety enhancement of potential crash sites, hazardous roadway conditions, or railway-highway crossings. Under federal law, this information cannot be used as evidence in any lawsuit or other action for damages that involves the sites mentioned in these records. (See 23 USC, Section 409).
This module should be used when trying to obtain datasets of town-wide crash data for specific requested years. The user can enter in the desired towns and years and receive an email with Excel files of the requested data.

NOTE: If you are requesting the latest 3 years of data for a large city or town and don't receive files, try requesting each year as a separate request.
This module should be used when trying to obtain a listing of crashes given specific parameters (for example, to obtain a listing of crashes occurring at dusk between June 2015 and October 2015 which involved a deer in the crash sequence of events). The output of this module will be a listing of specific crash reports which can then be exported.

The AdHoc module could be used in conjunction with the Mapping module so that all crashes located to a specific point, meeting specific criteria, can be viewed spatially.

It should be noted that the quality of the query results are based on the quality of the input data entered into the statewide database and the specific queries used. The resulting crash listing should be used with caution and only as a preliminary tool in crash analysis.
This module focuses on located crashes only and should be used when trying to obtain either a map of crashes or a listing of crashes with a specific geographic location. It can also be used in conjunction with the AdHoc module so that only crashes meeting specific criteria can be spatially viewed and/or listed and mapped.

Individuals using the mapping tool should understand that, because crash reports are incomplete or (missing location data, for example) inconsistent, approximately 20% of all reported crashes are not located and are not included on the maps. At a particular location, the percentage of crashes able to be located may be higher or lower than the overall geocoding rate. In addition, the location of a mapped crash may be an approximation rather than the exact point where a crash occurred. (This is particularly true near interchanges, rotaries or other hard to define locations).
This module should be used when trying to obtain a tabulation of specific crash data or to analyze crash data trends. The module does not provide a listing of specific crashes. The output is either a table with the total number of crashes for specific criteria or a chart depicting the number of crashes for specific criteria.
What years of data are currently available?
Data are available only for years for which data entry has been completed by the MassDOT Registry of Motor Vehicles. Due to delays in receiving and entering data, in general the latest year for which data are available is two years prior to the current year. For example, if the current year is 2017, the latest year of available data is for year 2015. The earliest year for which data are available through this web-based query tool is 2002.
What if I want general statistics on crashes in Massachusetts?
To obtain general crash statistics (instead of a detailed listing of each crash within a city/town) view crash statistics on the Executive Office of Public Safety and Security's Highway Safety Division's web site.
What do I need to file if I was involved in motor vehicle accident?
Visit the Registry of Motor Vehicles Accident Report Forms page to open an Operator's Report Form at: http://www.massrmv.com/FormsManuals/CrashOperatorReportForms.aspx.
How do I obtain a copy of a police report of a crash in which I was involved?
Who do I contact with questions/comments/feedback on the web-based crash reporting system?
Please email questions or comments to DOT.CrashDataRequest@dot.state.ma.us.
MassDOT (c) 2014