Driving & Driving Test Tips/Expert Profile


Traffic collision reconstructionist with 19 years of traffic collision investigation experience as an LAPD officer. I can answer questions about traffic collisions with vehicles, motorcycles, pedistrians, bicycles, and commercial vehicles. Especially cases of low speed collisions and injury potential. I can answer questions about the vehicle code (specific for Ca and in general for other states) but I am not a driving instructor nor a vehicle mechanic. You need to talk to someone else about these issues.

Experience in the area

19 years traffic collision investigations. 17 years as traffic collision reconstructionist for the city of Los Angeles and outside consultation. Court qualified in criminal and civil cases. ACTAR #519.


Accredidation Commission for Traffic Accident Reconstructionists Southwest Association of Technical Accident Investigators
Society Of Accident Reconstructionists
Society of Automotive Engineers
California Association of Accident Reconstruction Specialists


B.S. in Psychology Western Illinois University (math amjor-physics minor first two years), Now attending Chaffey college taking Calculus 3 and Chemistry working for Engineering degree

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
prashant_akerkar@yahoo.com07/21/15101010Dear Mark Thanks. Thanks & Regards, Prashant .....
Prashant S Akerkar04/25/15101010Dear Mark Thank you. Thanks & Regards .....
Prashant S Akerkar04/02/15101010Dear Mark Thanks. Thanks & Regards, Prashant .....
Prashant S Akerkar03/09/15101010Dear Mark Thanks. Thanks & Regards, Prashant .....
Prashant S Akerkar02/12/15101010Dear Mark Thanks. Thanks & Regards, Prashant .....

Recent Answers from Mark Winter

2015-02-02 driving?:

Alcohol (ETOH) will effect in each of these cases differently.    Males tend to be able to handle ETOH better then women.  a person that drinks more frequently has a higher tolerance  the young and the

2014-10-16 space between cars:

You are correct but these days the DMV manuals say leave approximately 2 seconds between you and the car in front of you.  Tailgating is a big problem but it is best to let the other guy do it and maintain

2014-10-01 Power Steering functions.:

Yes this has been done for disabled people.  It would undertake buttons to be toggled to accelerate or brake but these would probably be best not in the steering wheel.  They are hard to access when you

2014-09-28 Power Steering functions.:

These functions are already being done for handicapped people (paraplegics).  I do not have an opinion as to being more advantageous or not; it would be a different learning curve.  it is impracticable

2014-09-22 Left Hand and Right Hand Drive Trains.:

I do not know of any rule that dictates the seated position of the train operator.  There are spots on either side of the engine and I would only speculate that the operator is usually in the seat that


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