ARC Network Discussion

KEN · KEN

The stats for the 1991 mitsubishi montero or any mitsubishis are not available in the database. Anyone know why or where I can get them.

Craig · Craig

A typical intersection, right angle crash (rotation-secondary impact-third impact with fixed object) leaves an unbelted driver with typical C6-C7 fracture and dislocation injuries, resulting in quad. paralysis. She is treated by the usual Dr`s and operated on accordingly. The two main Dr...

Dannych01 · Dannych01

Funeral arrangements for Bucky Beaver of Southeast Collision Analysis are as follows:Visitation: Saturday March 28, 2009 from 6:00 8:00 p.m. Edo Miller Funeral Home 3321 Glynn Avenue (Highway 17) Brunswick 912-265-3636Memorial Service: Sunday March 29, 2009 at 2:00 p.m. Glyndale Baptist C...

Craig · Craig

I have been asked to assist purely on a research/advisory basis on a matter where the counsel has posed a few questions in anticipation of the trial. The crash is a typical intersection right angle crash, both vehicles (4 door sedans) met, moved off and incurred approx 90 degree rotation, moving to re...

ashman165 · ashman165

I don't mean to sound snarky, but it seems to me that far fewer topics are being discussed since the change of formats. I'm not saying there's any correlation, nor a post hoc ergo proptor hoc thing going on, only that it's how it seems me. So, are like drivers getting better? Is the database here suffic...

Dannych01 · Dannych01

Does anyone have any information on ped. Accident where the ped walked into a moving vehicle and was struck by the mirror.

Sewelli · Sewelli

I am looking for anyone that has had any experience with Elk collisions (or large animals such as a horse or cow), and the frequency/percentage of airbag deployments in such a collision. Also expected or calculated of Delta V from such a collision with 400-600 lb elk-no measurement. Vehicle is a hi...

SteveF · SteveF

I am currently working a case involving a Dodge Ram pick-up truck vs. pedestrian. Since this is a homicide case I would like to get the ACM and the PCM downloaded. I am wondering if anyone here can point me to a Chrysler Rep that I can speak to about this case.

skids4u · skids4u

If you have a known speed that a vehicle is traveling and known skid distance to impact, would it be possible to come up with an impact speed by simply subtracting the energy used in braking the known distance from the energy the vehicle had from traveling at the known speed. I can't find in any published...

Craig · Craig

<!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-1610611985 1107304683 159 0;} @font-face {font-family:Calibr...

Steve Mawhinney · Steve Mawhinney

I am looking for an avg accel rate for compact cars, does anyone have a location for published numbers??

ashman165 · ashman165

Lately I've taken to starting a how-to math guide for collision investigators. I've written in there the types of math I think people struggle with the most based on the cases (and some posts - and even testimony) I've seen over the years. So, I am kind of curious if anyone in here would feel comfortable...

david · david

I have a motorcycle accident were the bike hit a crash barrier , became entangled with the barrier and slid for a distance of 60.4meters before in fell over the edge and came to rest in a feild. the rider lost his right arm from the elbow , during the slid the bike hit a jeep that was travelling in the same di...

KEN · KEN

Body slides 300 feet on asphalt. This is a rolling, tumbling and bouncing slide. I was taught to use a 1.0 COF for this. I would like to be able to explain why we use the 1.0. and explain that the body is not touching the ground all the time and how the bounce or airborn time factors in to this. Thanks ken

JJBarnes · JJBarnes

We have a situation where a motorcycle skidded to an impact with a passenger vehicle. We have the speed loss from the skid and the speed at impact from the vault our concern is the combined speed. Do we use the standard combined speed formula or something different?

Trishy0819 · Trishy0819

Would a Pontiac Firebird driving at a speed of 5mph tear off the the bumper and smash in the rear quarter panel of a stopped Scion TC?

CrashXprt · CrashXprt

Here is a highly technical quesiton about the coefficient of restitution (e) that another engineer and I have been tossing around since it has recently become an issue in a particular case: The problem arises from the fact that there are many definitions for e, both conceptually and mathematically...

KEN · KEN

I trying to find a website that will give me some acceleration rates of vehicles. Specifically I want to look at the mercury grand marquis and see its acceleration rates and see how fast it is and its to 60 performance. I'm still looking but if anyone can give me an idea it could save me some time. tha...

Dmoreno · Dmoreno

I have been trying to find information on Motorcycle friction and can not find much new information. We recently went out with a Vericom 3000 and used a Police Kawi, we tried just some rear wheel locked skidding and came up with .123 and .161 friction. I know Northwestern has a table, but thats for sl...

Jim Epperson · Jim Epperson

Has anyone read this book yet? What do you think? "Analyzing Friction in the Design of Rubber Products and Their Paired Surfaces" From CRC Press.

Probie · Probie

Need some assisstance with DeltaV. How do you calculate DeltaV? I have the following information and I am trying to figure the DeltaV for each vehicle. This is a side impact collision with a PDOF of 190. I tried using V=sqr V1²+V2² - (2VV cos) and I come up with 41.1mph for veh1 and 35.8 for veh2. V1 Pre I...

omegacrash · omegacrash

My name is Craig Anderson. I have been a police officer in Northeast Ohio for the past 23 years. I recently started my own business, Omega Accident Reconstruction Services, located in Grand River, Ohio. I am enjoying looking at this forum because I like examining unusual situations in accident...

CrashXprt · CrashXprt

This is in response to a post on another thread, but I thought others might be interested. Really, the paper has a few nuggets of information buried in it that (IMHO) are pretty useful when a client asks about ABS. Most of us are already aware of these things either through other literature, word-of-...

Probie · Probie

Hi everyone and welcome to the new forum. My question is with crush points. The energy result from crush points is this Kinetic Energy, and if so then the impact speed is calculated from this number? I hope I am right in what I am saying. V=sqr(2*J/W) J= joules W= weight Please let me know if I am right wit...

MSCRecon · MSCRecon

Messerschmidt Safety Consulting is currently accepting applications for two positions: Accident Investigator and Accident Reconstructionist. You can download the position announcements from our website: www.mscrecon.com. Salary, requirements, qualifications, and application pro...

arcAdmin · arcAdmin

2008 ARC-CSI Crash Conference Las Vegas, NV June 2-5, 2008 Click Here to Register Join us in Las Vegas, NV for the 7th Annual ARC-CSI Crash Conference. This conference will include multiple full scale crash tests conducted at the Las Vegas Motor Speedway and 3-days of presentations from leading exp...

Topic		Started By	Replies	Views	Last Post
	Vehicle database question (Preview) The stats for the 1991 mitsubishi montero or any mitsubishis are not available in the database. Anyone know why or where I can get them.	KEN	1	1989	Apr 25 10:30 AM, 2009 by omegacrash
	Who should testify (Preview) A typical intersection, right angle crash (rotation-secondary impact-third impact with fixed object) leaves an unbelted driver with typical C6-C7 fracture and dislocation injuries, resulting in quad. paralysis. She is treated by the usual Dr`s and operated on accordingly. The two main Dr...	Craig	3	4240	Apr 8 3:24 AM, 2009 by Craig
	Funeral arrangements for Bucky Beaver of Southeast Collision Analysis (Preview) Funeral arrangements for Bucky Beaver of Southeast Collision Analysis are as follows:Visitation: Saturday March 28, 2009 from 6:00 8:00 p.m. Edo Miller Funeral Home 3321 Glynn Avenue (Highway 17) Brunswick 912-265-3636Memorial Service: Sunday March 29, 2009 at 2:00 p.m. Glyndale Baptist C...	Dannych01	1	3604	Apr 1 8:42 AM, 2009 by jean874
	Possibility of severe injury even with seatbelt use? (Preview) I have been asked to assist purely on a research/advisory basis on a matter where the counsel has posed a few questions in anticipation of the trial. The crash is a typical intersection right angle crash, both vehicles (4 door sedans) met, moved off and incurred approx 90 degree rotation, moving to re...	Craig	6	2691	Mar 5 10:14 PM, 2009 by Craig
	Curiousity about the new forum: (Preview) I don't mean to sound snarky, but it seems to me that far fewer topics are being discussed since the change of formats. I'm not saying there's any correlation, nor a post hoc ergo proptor hoc thing going on, only that it's how it seems me. So, are like drivers getting better? Is the database here suffic...	ashman165	1	2043	Feb 25 10:06 AM, 2009 by BlueB
	Ped Accidents (Preview) Does anyone have any information on ped. Accident where the ped walked into a moving vehicle and was struck by the mirror.	Dannych01	1	2279	Jan 21 11:49 AM, 2009 by omegacrash
	Elk or large animal Collisions (Preview) I am looking for anyone that has had any experience with Elk collisions (or large animals such as a horse or cow), and the frequency/percentage of airbag deployments in such a collision. Also expected or calculated of Delta V from such a collision with 400-600 lb elk-no measurement. Vehicle is a hi...	Sewelli	6	2404	Jan 19 6:58 AM, 2009 by Sewelli
	Downloading a Chrysler ACM (Preview) I am currently working a case involving a Dodge Ram pick-up truck vs. pedestrian. Since this is a homicide case I would like to get the ACM and the PCM downloaded. I am wondering if anyone here can point me to a Chrysler Rep that I can speak to about this case.	SteveF	3	2176	Jan 13 5:00 PM, 2009 by omegacrash
	Use of Kenetic Energy (Preview) If you have a known speed that a vehicle is traveling and known skid distance to impact, would it be possible to come up with an impact speed by simply subtracting the energy used in braking the known distance from the energy the vehicle had from traveling at the known speed. I can't find in any published...	skids4u	3	2542	Dec 27 4:13 PM, 2008 by skids4u
	Motorcycle braking questions - unusual evidence (Preview) <!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-1610611985 1107304683 159 0;} @font-face {font-family:Calibr...	Craig	5	4099	Dec 17 6:58 AM, 2008 by Craig
	"a" (Preview) I am looking for an avg accel rate for compact cars, does anyone have a location for published numbers??	Steve Mawhinney	2	1821	Nov 24 8:14 AM, 2008 by jonathangough
	random math question . . . ish (Preview) Lately I've taken to starting a how-to math guide for collision investigators. I've written in there the types of math I think people struggle with the most based on the cases (and some posts - and even testimony) I've seen over the years. So, I am kind of curious if anyone in here would feel comfortable...	ashman165	2	2446	Oct 21 5:12 AM, 2008 by ashman165
	motorcycle accident (Preview) I have a motorcycle accident were the bike hit a crash barrier , became entangled with the barrier and slid for a distance of 60.4meters before in fell over the edge and came to rest in a feild. the rider lost his right arm from the elbow , during the slid the bike hit a jeep that was travelling in the same di...	david	26	5762	Oct 10 7:44 AM, 2008 by ashman165
	Need help explaining body slide COF. (Preview) Body slides 300 feet on asphalt. This is a rolling, tumbling and bouncing slide. I was taught to use a 1.0 COF for this. I would like to be able to explain why we use the 1.0. and explain that the body is not touching the ground all the time and how the bounce or airborn time factors in to this. Thanks ken	KEN	22	3180	Oct 4 12:44 AM, 2008 by ashman165
	Motorcycle Skid to Impact Combined Speed (Preview) We have a situation where a motorcycle skidded to an impact with a passenger vehicle. We have the speed loss from the skid and the speed at impact from the vault our concern is the combined speed. Do we use the standard combined speed formula or something different?	JJBarnes	10	6770	Aug 29 10:02 AM, 2008 by omegacrash
	The Impact of a 5mph crash... (Preview) Would a Pontiac Firebird driving at a speed of 5mph tear off the the bumper and smash in the rear quarter panel of a stopped Scion TC?	Trishy0819	12	5337	Aug 27 9:31 AM, 2008 by Trishy0819
	Coefficient of Restitution - Solid Foundation or Smoke and Mirrors? (Preview) Here is a highly technical quesiton about the coefficient of restitution (e) that another engineer and I have been tossing around since it has recently become an issue in a particular case: The problem arises from the fact that there are many definitions for e, both conceptually and mathematically...	CrashXprt	10	5351	Aug 18 5:50 PM, 2008 by ashman165
	vehicle stats. (Preview) I trying to find a website that will give me some acceleration rates of vehicles. Specifically I want to look at the mercury grand marquis and see its acceleration rates and see how fast it is and its to 60 performance. I'm still looking but if anyone can give me an idea it could save me some time. tha...	KEN	3	1643	Aug 17 2:39 PM, 2008 by ashman165
	Motorcycle Friction (Preview) I have been trying to find information on Motorcycle friction and can not find much new information. We recently went out with a Vericom 3000 and used a Police Kawi, we tried just some rear wheel locked skidding and came up with .123 and .161 friction. I know Northwestern has a table, but thats for sl...	Dmoreno	5	7456	Aug 17 2:33 PM, 2008 by ashman165
	New book about tire/road friction (Preview) Has anyone read this book yet? What do you think? "Analyzing Friction in the Design of Rubber Products and Their Paired Surfaces" From CRC Press.	Jim Epperson	2	1866	Aug 17 2:16 PM, 2008 by ashman165
	DeltaV (Preview) Need some assisstance with DeltaV. How do you calculate DeltaV? I have the following information and I am trying to figure the DeltaV for each vehicle. This is a side impact collision with a PDOF of 190. I tried using V=sqr V1²+V2² - (2VV cos) and I come up with 41.1mph for veh1 and 35.8 for veh2. V1 Pre I...	Probie	8	3532	Aug 14 1:49 PM, 2008 by ashman165
	Hello!! (Preview) My name is Craig Anderson. I have been a police officer in Northeast Ohio for the past 23 years. I recently started my own business, Omega Accident Reconstruction Services, located in Grand River, Ohio. I am enjoying looking at this forum because I like examining unusual situations in accident...	omegacrash	0	1662	Aug 4 1:49 PM, 2008 by omegacrash
	Antilock braking systems - Euro Journal of Physics (Preview) This is in response to a post on another thread, but I thought others might be interested. Really, the paper has a few nuggets of information buried in it that (IMHO) are pretty useful when a client asks about ABS. Most of us are already aware of these things either through other literature, word-of-...	CrashXprt	1	2760	Jul 24 7:20 AM, 2008 by CrashXprt
	Crush Points (Preview) Hi everyone and welcome to the new forum. My question is with crush points. The energy result from crush points is this Kinetic Energy, and if so then the impact speed is calculated from this number? I hope I am right in what I am saying. V=sqr(2*J/W) J= joules W= weight Please let me know if I am right wit...	Probie	10	7291	Jul 22 10:42 AM, 2008 by CrashXprt
	AI & AR Job Openings (Preview) Messerschmidt Safety Consulting is currently accepting applications for two positions: Accident Investigator and Accident Reconstructionist. You can download the position announcements from our website: www.mscrecon.com. Salary, requirements, qualifications, and application pro...	MSCRecon	0	2785	Jul 1 2:12 PM, 2008 by MSCRecon
	2008 ARC-CSI Crash Conference (Preview) 2008 ARC-CSI Crash Conference Las Vegas, NV June 2-5, 2008 Click Here to Register Join us in Las Vegas, NV for the 7th Annual ARC-CSI Crash Conference. This conference will include multiple full scale crash tests conducted at the Las Vegas Motor Speedway and 3-days of presentations from leading exp...	arcAdmin	0	3116	Apr 23 8:50 AM, 2008 by arcAdmin
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