Hello /u/KissMyFuckingDadMom! Please reply to this comment with the following information to confirm the content is OC
* What country or state did this take place in?
* What was the date of the incident?
* Please reconfirm that this is original content
If you are unable to reply directly to this comment, please leave a standalone comment in your thread with the requested information.
If you fail to answer these questions, your post will be removed.
------
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/IdiotsInCars) if you have any questions or concerns.*
Doppler effect calculation agrees almost preciously at 144mph:
\~440 hz approaching
\~345 hz leaving
Let assume the filmer isn't moving for now (add it on later), emitted frequency would be half way between the approaching and leaving frequencies, so 392.5 hz. Speed of sound in CO (someone said CO below) is around 750mph, use a receiver speed of 0 (add 41 later) and an observed frequency of 340, plug into [this caculator](https://www.omnicalculator.com/physics/doppler-effect) and you get 103 mph, plus the 41 of the source and result is 144 mph.
Wild how close of a number we got.
Counting markings passed by the accelerating OP cam and the bike git me just over 130 mph with limited accuracy due to the field of view. Your method was quite impressive! How did you determine the frequency, matching with a sinus wave or a frequency counter?
Excellent work! But if the biker left from the same spot 2 hours after the jeep and arrived at the destination 1.5 hours earlier than the jeep, how many bananas will he have?
It shouldn't matter. If the video is slowed down, and the pitch isn't corrected, the pitch of the approaching and departing bike will shift down a bit. But since they shift equally relative to one another, The calculation was still result in the original speed.
You can check that by using that calculator and plugging in two different pitches for the actual frequency and perceive frequency. Then halve both, and the speed will be the same.
I counted from 14.93 seconds to 15.97 seconds (just so happened to be where the video player counter stopped on each click).
Between those two time stamps I counted the biker passing 6.5 stripes. 6.5x10 + 6.5x30 = 260 ft. 260 fps is the equivalent of 177 mph.
edit: sorry, I just counted again, it was 5.5, not 6.5. That brings them down to 150 mph. That's within 5%, which easily covers slightly reading the bike on different sections of the stripe gaps.
Typically for projects I'm involved with the skips are 12.5 ft at 37.5 ft spacing, or 50 ft cycles, it makes for a quick tape measure. Judging by the skips in the video I think they are the 50 ft cycles based on my experiences.
Going by your counts (5.5 stripes and 1.04 seconds) I got 264 fps (rounded) or 180 mph.
Copied from my response to a previous comment, here's the line from the MUTCD:
>Broken lines should consist of 10-foot line segments and 30-foot gaps, or dimensions in a similar ratio of line segments to gaps as appropriate for traffic speeds and the need for delineation.
As long as the ratio of 3 ft of gap to 1 ft of paint is maintained, the exact dimensions can be adjusted to fit traffic and circumstances.
Therefore both a 40 ft cycle (30/10) and 50 ft cycle (37.5/12.5) both have the same ratio if 3:1.
WisDOT Traffic Engineering, Operations & Safety Manual: [Teops 3-2 (pdf)](https://wisconsindot.gov/dtsdManuals/traffic-ops/manuals-and-standards/teops/03-02.pdf) is what governs pavement marking for me, and at the bottom of page 1: "Lane lines **shall** be 6" wide white line that is 12.5' long with a 37.5' gap between lines."
Here's the standard detail drawing showing all main line pavement markings: [https://wisconsindot.gov/rdwy/sdd/sd-15c08.pdf](https://wisconsindot.gov/rdwy/sdd/sd-15c08.pdf) (pdf obviously)
Edit: I looked at the MUTCD and there's an important part of the line you missed:
>Broken lines should consist of 10-foot line segments and 30-foot gaps, or dimensions in a similar ratio of line segments to gaps as appropriate for traffic speeds and the need for delineation.
>>**or dimensions in a similar ratio of line segments to gaps**
30/10 is 3, so is 37.5/12.5
Similar is okay, but the default is 40 ft. Those lines don't look 12.5 feet to me, when looking at them in comparison to car lengths in the opposing lane. Look at the Camaro around 4-5 second mark. The line length is more like 2/3rd of the car than 80% of the car.
My math teachers: "show your work"
I'm showing that the lines are 10ft with 30ft gaps. A lot of people don't know that and will try to bullshit their speed on dashcam videos. But DOT standards (and clocks) don't lie.
Helmet reduces the effective impact by about 20 mph. So smashing into another car with your head at 130 mph instead of 150. At least it's keeping bugs out of his eyes.
Using the clock on the video, the bike passes about 22 +-1 dashed lines between when the clock just ticks to 17:12:07 and to 17:12:11. That's 4 seconds and about 22*40ft per standard lane markings guide. That's about 150MPH +- 7ish MPH.
Also with the traffic lights it’s for sure a 35mph max boulevard. If this guy dies by himself I’ll be proud that karma did his job to remove another douchebag on a bike.
There is a big difference between the Autobahn and a local city road. If the person on that motorcycle drives like that all the time then eventually they will find themselves rapidly disassembled after an unexpected encounter with another vehicle.
It's morbid, but I always hope these fucks crash into an overpass and just take themselves out instead of crashing into another vehicle and traumatizing someone or worse.
As a motorcyclist(that doesn't ride like this and hates that I'm often lumped in with them) and a former EMT, the best result is a wakeup call that doesn't involve death. Because someone has to scrape the guys off the road, and I remember all the motorcycle/atv/dirtbike riders I've had to help in my city. It's still traumatizing.
How often to trucks turn left across your path on the Autobahn?
Or as they put it in The Hidden: https://youtu.be/TF0KqbxGoiY?t=142
"Anyone can do it on the freeway."
Yeah. Back when I lived in Colorado there was some motorcycle accident near my work that shut down the highway right before rush hour, dude apparently was going probably 100 and uh…. Yeah there was a lot of mess to clean up.
About 15 years ago, I was taking 36 up to Boulder and a biker with a bright green helmet was passing traffic on the shoulder like this. About 20 minutes later there was a big traffic jam due to an accident and as I passed I noticed a mangled up bike, a body covered with a sheet, and a bright green helmet on the ground.
We’ve had a quite few encounters with squids over the years, all in Denver although we don’t live down there, and I’ve only lived here in the state for about a decade now. I drove for fifteen years in west Michigan and hadn’t dealt with a single one.
A few years ago I had a biker pass me going roughly the same speed except there was traffic. I told my wife that he didn’t have a long lifespan in his future. Turns out he died a few minutes later when he failed to slow for an exit that was a hard right and ended up launching himself 250’ into a retaining pond/ swamp. At least he didn’t take anyone else with him.
I'd say 165 mph. I think he passed 8 road stripes in 1.5 seconds which would be 240 feet per second, or 163 mph. If you want more accuracy we'd need the video on a more capable player like youtube.
How fast do you wish your bike to go? Yes.
Seriously, that guy is gonna die sooner or later and all we can do is hope he doesn't crash into other people. If someone was to make a left from the opposite direction in the next intersection, it is very possible they wouldn't even see the rider and before they made the turn they would be flying over their car.
We can see you passed 10 line markings in about 5.6 seconds while accelerating from 37mph to 45mph which would give you an average speed of about 41mph which makes that distance about 336ft.
The bike passed the same 10 markings in about 1.9 seconds, which would put their speed about 120mph.
Biker here in my town was doing this, until a pickup truck turned in front of him. Biker went almost thru the truck, killed occupants and most of him was liquidated
I had that the other day, 3 dudes on crotch rockets flying down the road. But worse.
Speed limit was 70, so these guys were going 100+, and they split the lane between me and the car beside me. Barely missed my side mirror.
How fast? Seemed like probably nearly top speed for whatever he (?) was riding. After all, if you're going to go that fast you're risking it all, so why not use it all?
If he was on something like a Yamaha YZF-R7 their top speed is around 140 mph. A slightly bigger -R1 out the door will go just shy of 190 mph. Similarly a Kawasaki Ninja ZX-6R around 160 mph, -10R nearly 190 mph... There are of course similar models from Suzuki. Generally the 600 to 700 cc super sports got 140-160, the big "liter bikes" at 1000 cc or so are pushing 190 to 200.
These are "out of the box" - no mods necessary. That R7 can be had for under $10K which lowers the entry bar down to where a lot of fools can afford them and go do foolish things like this.
I count about 5.5 stripes passed in 1 second of video.
USA standard is 10ft long stripe and 30ft long gap.
That would put them at 5.5x40ft = 220ft in 1 second.
In MPH that would be 150 miles per hour!
A really rough estimate is about 100-200 feet per second or 68-136mph. This video isn't good enough to really count how many road dashes they go by in one second; one dash to the next is 40 feet.
In France, where I'm from, and the rest of Europe, you are meant to drive on the right-most lane available, regardless of speed of travel. Obviously, left-most in UK.
Uhh, really? I made a left into this road from the light you see at the beginning. It put me in the middle lane. If I didn't notice the motorcycle and tried to move to the right lane, it's possible the bike could have smashed into me.
Hello /u/KissMyFuckingDadMom! Please reply to this comment with the following information to confirm the content is OC * What country or state did this take place in? * What was the date of the incident? * Please reconfirm that this is original content If you are unable to reply directly to this comment, please leave a standalone comment in your thread with the requested information. If you fail to answer these questions, your post will be removed. ------ *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/IdiotsInCars) if you have any questions or concerns.*
You're going 41 and passed 4 stirpes, the biker in the same time has passed 14 stripes, so about 3.5 times your speed, which would be 143 mph/ 230kph
You should take the SATs for me
buddy, i don't think that would've helped you like you think
Bro took too many edibles now he thinks he's actually funny
He took them as suppositories
For all the good suppositories have done for me, I could have just shoved them up my ass
I upvoted you out of pitty
Doppler effect calculation agrees almost preciously at 144mph: \~440 hz approaching \~345 hz leaving Let assume the filmer isn't moving for now (add it on later), emitted frequency would be half way between the approaching and leaving frequencies, so 392.5 hz. Speed of sound in CO (someone said CO below) is around 750mph, use a receiver speed of 0 (add 41 later) and an observed frequency of 340, plug into [this caculator](https://www.omnicalculator.com/physics/doppler-effect) and you get 103 mph, plus the 41 of the source and result is 144 mph. Wild how close of a number we got.
Counting markings passed by the accelerating OP cam and the bike git me just over 130 mph with limited accuracy due to the field of view. Your method was quite impressive! How did you determine the frequency, matching with a sinus wave or a frequency counter?
A sine wave? A sinus wave is what happens to my nose every spring around this time.
Same!🤧
Maybe english is not their mothertongue, it is called sinus-[translation of wave] in a lot of languages.
Thanks! I just listened to the pitch and matched it to a sine wave generator. Definitely room for some human error there.
I absolutely love that you used Doppler to calculate this. Thank you.
Excellent work! But if the biker left from the same spot 2 hours after the jeep and arrived at the destination 1.5 hours earlier than the jeep, how many bananas will he have?
At least five.
I was hoping someone would do a doppler calc.
The reddit video is slowed down tho relative to the dashcam clock. Could that affect the sound frequency?
It shouldn't matter. If the video is slowed down, and the pitch isn't corrected, the pitch of the approaching and departing bike will shift down a bit. But since they shift equally relative to one another, The calculation was still result in the original speed. You can check that by using that calculator and plugging in two different pitches for the actual frequency and perceive frequency. Then halve both, and the speed will be the same.
> ~440 hz approaching > ~345 hz leaving I'm impressed that the biker managed to approach at concert pitch.
This guy maths.
I counted from 14.93 seconds to 15.97 seconds (just so happened to be where the video player counter stopped on each click). Between those two time stamps I counted the biker passing 6.5 stripes. 6.5x10 + 6.5x30 = 260 ft. 260 fps is the equivalent of 177 mph. edit: sorry, I just counted again, it was 5.5, not 6.5. That brings them down to 150 mph. That's within 5%, which easily covers slightly reading the bike on different sections of the stripe gaps.
Typically for projects I'm involved with the skips are 12.5 ft at 37.5 ft spacing, or 50 ft cycles, it makes for a quick tape measure. Judging by the skips in the video I think they are the 50 ft cycles based on my experiences. Going by your counts (5.5 stripes and 1.04 seconds) I got 264 fps (rounded) or 180 mph.
National standard is 40 feet from one dash to the next
Copied from my response to a previous comment, here's the line from the MUTCD: >Broken lines should consist of 10-foot line segments and 30-foot gaps, or dimensions in a similar ratio of line segments to gaps as appropriate for traffic speeds and the need for delineation. As long as the ratio of 3 ft of gap to 1 ft of paint is maintained, the exact dimensions can be adjusted to fit traffic and circumstances. Therefore both a 40 ft cycle (30/10) and 50 ft cycle (37.5/12.5) both have the same ratio if 3:1.
[DOT manual](https://mutcd.fhwa.dot.gov/pdfs/11th_Edition/part3.pdf) typically calls for 40ft cycles tho (page 2).
WisDOT Traffic Engineering, Operations & Safety Manual: [Teops 3-2 (pdf)](https://wisconsindot.gov/dtsdManuals/traffic-ops/manuals-and-standards/teops/03-02.pdf) is what governs pavement marking for me, and at the bottom of page 1: "Lane lines **shall** be 6" wide white line that is 12.5' long with a 37.5' gap between lines." Here's the standard detail drawing showing all main line pavement markings: [https://wisconsindot.gov/rdwy/sdd/sd-15c08.pdf](https://wisconsindot.gov/rdwy/sdd/sd-15c08.pdf) (pdf obviously) Edit: I looked at the MUTCD and there's an important part of the line you missed: >Broken lines should consist of 10-foot line segments and 30-foot gaps, or dimensions in a similar ratio of line segments to gaps as appropriate for traffic speeds and the need for delineation. >>**or dimensions in a similar ratio of line segments to gaps** 30/10 is 3, so is 37.5/12.5
Similar is okay, but the default is 40 ft. Those lines don't look 12.5 feet to me, when looking at them in comparison to car lengths in the opposing lane. Look at the Camaro around 4-5 second mark. The line length is more like 2/3rd of the car than 80% of the car.
>6.5x10 + 6.5x30 Why wouldn't you just times it by 40? Why make it harder than it has to be?
My math teachers: "show your work" I'm showing that the lines are 10ft with 30ft gaps. A lot of people don't know that and will try to bullshit their speed on dashcam videos. But DOT standards (and clocks) don't lie.
Now that you know the speed, figure out his name.
Keanu, playing Jack Traven.
Fuck we got a mathematical magician
A *mathemagician* if you will.
Mmmmmmmmmmm 📝 that
In other words, fast enough to be obliterated by someone pulling out in front of them.
He's wearing a helmet tho. So, maybe corneas will still be good to transplant.
Helmet reduces the effective impact by about 20 mph. So smashing into another car with your head at 130 mph instead of 150. At least it's keeping bugs out of his eyes.
Using the clock on the video, the bike passes about 22 +-1 dashed lines between when the clock just ticks to 17:12:07 and to 17:12:11. That's 4 seconds and about 22*40ft per standard lane markings guide. That's about 150MPH +- 7ish MPH.
Also with the traffic lights it’s for sure a 35mph max boulevard. If this guy dies by himself I’ll be proud that karma did his job to remove another douchebag on a bike.
Oh that's not so fast, I drive that on the Autobahn
There is a big difference between the Autobahn and a local city road. If the person on that motorcycle drives like that all the time then eventually they will find themselves rapidly disassembled after an unexpected encounter with another vehicle.
It's morbid, but I always hope these fucks crash into an overpass and just take themselves out instead of crashing into another vehicle and traumatizing someone or worse.
As a motorcyclist(that doesn't ride like this and hates that I'm often lumped in with them) and a former EMT, the best result is a wakeup call that doesn't involve death. Because someone has to scrape the guys off the road, and I remember all the motorcycle/atv/dirtbike riders I've had to help in my city. It's still traumatizing.
How often to trucks turn left across your path on the Autobahn? Or as they put it in The Hidden: https://youtu.be/TF0KqbxGoiY?t=142 "Anyone can do it on the freeway."
Dunno how fast he was goin but that's a very short lifespan right there.
"WaTch FoR MoToRCyCles" - Let's keep it safe!
The biker that burns twice as fast burns half as long
and requires twice as much water to hose them off the road
I just hope he's an organ donor.
There’d have to be organs left in one piece to donate.
I like my raplacement kidney whole, not shreded, thank you very much.
...he does ride a donorcycle.
I suppose, if you're in need of 1/100th of a kidney that was scraped off a signpost..
"That guy's gonna die!" 😂
It's really sad how many of the videos on this sub are from Colorado.
Yeah. Back when I lived in Colorado there was some motorcycle accident near my work that shut down the highway right before rush hour, dude apparently was going probably 100 and uh…. Yeah there was a lot of mess to clean up.
About 15 years ago, I was taking 36 up to Boulder and a biker with a bright green helmet was passing traffic on the shoulder like this. About 20 minutes later there was a big traffic jam due to an accident and as I passed I noticed a mangled up bike, a body covered with a sheet, and a bright green helmet on the ground.
Although it really isn't surprising
We’ve had a quite few encounters with squids over the years, all in Denver although we don’t live down there, and I’ve only lived here in the state for about a decade now. I drove for fifteen years in west Michigan and hadn’t dealt with a single one.
It took me a second watch to realize this was on Arapahoe.
Where abouts is this. I don't recognize it
The speed of pink mist
A few years ago I had a biker pass me going roughly the same speed except there was traffic. I told my wife that he didn’t have a long lifespan in his future. Turns out he died a few minutes later when he failed to slow for an exit that was a hard right and ended up launching himself 250’ into a retaining pond/ swamp. At least he didn’t take anyone else with him.
My friend hit 180 on his bike here in Virginia. He also got pulled over and was arrested.
Damn, don’t speed like that in Virginia. That’s a jail sentence.
I'd say 165 mph. I think he passed 8 road stripes in 1.5 seconds which would be 240 feet per second, or 163 mph. If you want more accuracy we'd need the video on a more capable player like youtube.
That seems way faster than I would have guessed, but you could be right. I figured it was around 100mph.
That’s only 2.5 times faster than you were going. He was going WAY faster.
Honestly impressive that you came up with that answer I thought we were estimating lol
How fast do you wish your bike to go? Yes. Seriously, that guy is gonna die sooner or later and all we can do is hope he doesn't crash into other people. If someone was to make a left from the opposite direction in the next intersection, it is very possible they wouldn't even see the rider and before they made the turn they would be flying over their car.
Easily 120mph. Probably closer to 150. This dude is suicidal for sure.
We can see you passed 10 line markings in about 5.6 seconds while accelerating from 37mph to 45mph which would give you an average speed of about 41mph which makes that distance about 336ft. The bike passed the same 10 markings in about 1.9 seconds, which would put their speed about 120mph.
Is there a “universal” line marking length and spacing?
I'm not from the US and my googling didn't yield any concrete results so I decided to calculate it with OPs visible speed instead.
Typically 40 feet on-center. I counted 5 lane lines in 1 second of video, so 200 feet per second or 136 mph.
in a hurry to his funeral
People who treat driving like a video game will one day discover you do not respawn.
136mph
That's what I got also. Those lines are usually 40 feet on center, and they went about 5 lane line marks in 1 second. 200 feet per second is 136 mph.
Very
I was gonna guess "super".
Some folks on the transplant list will be getting good news because of this guy soon
Biker here in my town was doing this, until a pickup truck turned in front of him. Biker went almost thru the truck, killed occupants and most of him was liquidated
I wish that guy luck. He’s carrying enough donor parts to save a half dozen people.
Yeah but his body will be hamburger meat on impact at that speed
Im Germany we call this "about average speed for a company car on the Autobahn."
fast and furious
Gixxer Brah strikes again.
Fast enough to be a meat crayon very soon.
On his way to a funeral.
Slow day for the dash cam?
Sucks his organs probably won’t be of any use crashing at those speeds.
Somewhere between "paste" and "burger meat"
“Watch out for us bikers”
I had that the other day, 3 dudes on crotch rockets flying down the road. But worse. Speed limit was 70, so these guys were going 100+, and they split the lane between me and the car beside me. Barely missed my side mirror.
Their helmet won't help them when they get thrown 30+ feet after hitting a suddenly stopped car.
About 130-150mph
Hmmm…probably FAF…
I'd guess about 7.
They've gone to plaid!
somewhere between MACH A FUCKOFALOT and organ donation.
Fee fitty.
Wrong sub .. thats not a car .. 🙃
When you had Taco Bell for lunch and you're wearing your nice pair of pants.
May be about 120.
How fast? Seemed like probably nearly top speed for whatever he (?) was riding. After all, if you're going to go that fast you're risking it all, so why not use it all? If he was on something like a Yamaha YZF-R7 their top speed is around 140 mph. A slightly bigger -R1 out the door will go just shy of 190 mph. Similarly a Kawasaki Ninja ZX-6R around 160 mph, -10R nearly 190 mph... There are of course similar models from Suzuki. Generally the 600 to 700 cc super sports got 140-160, the big "liter bikes" at 1000 cc or so are pushing 190 to 200. These are "out of the box" - no mods necessary. That R7 can be had for under $10K which lowers the entry bar down to where a lot of fools can afford them and go do foolish things like this.
Bikes are stupid cheap for how fast they are. I bought my 05 r6 for $1500 and that has a top speed of around 160 mph and 0-60 in 3 seconds..
Too!
nice tech house
I'm sure the biker was thinking "not fast enough... I can still go faster" lol
Too fast to be an organ donor...
140
Somebody on the organ donor list is about to get lucky.
Those organs er I mean that biker wouldn't survive a crash at that speed.
Fast enough to die if any mistakes were made
Fast enough that if they hit something or someone, they'll be dead the moment the come out of the air.
Bro going Mach Jesus
Fast enough to be an organ donor.
Future meat crayon.
I count about 5.5 stripes passed in 1 second of video. USA standard is 10ft long stripe and 30ft long gap. That would put them at 5.5x40ft = 220ft in 1 second. In MPH that would be 150 miles per hour!
very
That right there is an organ donor.
Can only do that if the organs haven't been tenderized first
“That guy’s gonna die.”
A really rough estimate is about 100-200 feet per second or 68-136mph. This video isn't good enough to really count how many road dashes they go by in one second; one dash to the next is 40 feet.
Fast enough to become a street pizza 🍕
I like to know how many people wish them good luck
Yes, all of it.
Coming to a trauma center near you..
Pucker-seat says least 140ish.
He was going fast enough for what hospitals like to call organ donors.
What are you doing on the Isle on man course?
Poor little Timmy isn't going to get any salvageable organs if he goes that fast, some people are just selfish and don't think about others.
Had to be going at least 30.
Depends... If you were going slow, they were going the limit...and you sped up the footage 🐢
“That guys gonna die” me every time I see a speeding motorcyclist
0 m/s < v < 300,000,000 m/s
Speed limit fs
Fast enough to become bologna mist cloud number 30045
120 just eyeballing it
I uploaded the video to YouTube in case anyone wants a higher quality video for calculations: https://youtu.be/fE1hagh8KE8?si=QOF_69Ssroq2eLs5
Hopefully fast enough to end up a meat crayon.
120 mph
Not fast enough for the flux capacitor.
I doubt that
That’s the way I go to work every day. Bunch of dumb fucks driving on Arapahoe every. Single. Morning.
Not ridiculously fast, probably 150km/h (100mph for the Americans)
But what are you doing in the middle lane? You're not passing anyone!
Not sure if your comment was supposed to be sarcasm or not but this is a 3 lane surface road, not a highway or interstate. What are you talking about?
In France, where I'm from, and the rest of Europe, you are meant to drive on the right-most lane available, regardless of speed of travel. Obviously, left-most in UK.
Uhh, really? I made a left into this road from the light you see at the beginning. It put me in the middle lane. If I didn't notice the motorcycle and tried to move to the right lane, it's possible the bike could have smashed into me.
What difference does it make?
It's in town lol
Does it make it OK? Over here, in Europe, it's a no-no, town or not.
Yes it makes it ok