Useful Links

Crash Corner

Crash Corner is Back...Crash Corner is a quarterly publication discussing issues, problems and ideas related to crash reporting through Delta Plus. There will be other featured articles about planned improvements within Delta Plus as well.

Please feel free to distribute it to personnel within your agency. If you have something similar to the PowerDMS or an intranet for all your users, please post this there as well. This is an important tool to get issues out to end users.

April 2017

July 2017

In 2014 the Maryland State Police released the new Automated Crash Reporting System. This new crash reporting system runs within Delta Plus, which is used by many Maryland law enforcement agencies for electronic ticketing, FIRs, SEROs and many other enforcement activities.

This user manual reflects the latest changes to the Automated Crash Reporting System and has a revision date of September, 2017.


A very recent (May 27, 2015) Maryland Court of Special Appeals opinion discusses the admissibility of the air bag control module data. This is a very favorable opinion and will help all of us involved in the crash reconstruction profession.

Spoiler Alert: The Court allowed it and the reconstructionist was our own Frank Carson.

Thanks to our very own Transportation Safety Resource Prosecutor, David Daggett for providing this brief.


Most agencies have crash reporting formats used by their Reconstructionists. For those who don't, the MCRC convened a committee to create a crash reporting plan to guide the new investigator handling a severe crash.


The Model Minimum Uniform Crash Criteria Guideline (MMUCC) is a minimum, standardized data set for describing motor vehicle crashes and the vehicles, persons and environment involved. The Guideline is designed to generate the information necessary to improve highway safety within each state and nationally. This data set, originally published in the MMUCC Guideline, 1st Edition (1998), has been revised three times. Most recently, with the 5th Edition (2017), in response to emerging highway safety issues.

For more Model Minimum Uniform Crash Criteria resources you can go to the site MMUCC website.


The purpose of the American National Standard is to provide a common language for reporters, classifiers, analysts and users of traffic crash data. The Manual on Classification of Motor Vehicle Traffic Crashes and its predecessor, Uniform Definitions of Motor Vehicle Accidents, have provided classification assistance for more than half a century.

The manual is designed to facilitate the development of data on crashes involving motor vehicles and other road vehicles in and out of traffic. It is a standard for statistical classifications of motor vehicle traffic crashes for nationwide use.

The principal changes in this Eighth Edition are the incorporation of new definitions/classifications and modifications to existing definitions/classifications (see “Eighth Edition Revised and New D16.1 Definitions” chart on page iii.) During the review for this Eighth Edition, care was taken to maintain consistency between this standard and the Model Minimum Uniform Crash Criteria guidelines.


NHTSA was established by the Highway Safety Act of 1970 and is dedicated to achieving the highest standards of excellence in motor vehicle and highway safety. It works daily to help prevent crashes and their attendant costs, both human and financial.