Ways to measure speed and acceleration on a transit bus?
472649
"Accurately" is a difficult term; you don't state how accurately.  However, when I was working on electric vehicles, we had the same problem, and got a special sort of GPS (Global Positioning Satellite) Receiver, called a survey logger.  This, now that SA is ancient history, should be accurate to a few meters, for position, if mounted correctly.  It will take a log of the position, at rates of up to 1Hz, if you get the right kit, and then taking the derivative of the position can give you speed, a second derivative gives acceleration.\n\nALTERNATELY if the acceleration is high (as in a crash), then you need to mount an accelerometer, or a set of tri-axis accelerometers.  The signal from these can often be logged to a laptop computer.\n\nNot a definitive answer; hope this points you in the right direction.
136270
Nowadays, ground speed can be measured quite easily with positioning instruments such as GPS or LORAN.  Prior to having advanced onboard positioning systems, it was necessary to get two fixes on one's location and the time of the fixes to calculate ground speed from the distance travelled between the two times.  Before radio beacons, this usually meant that one would locate themselves based on visual landmarks, such as towns or large physical features.
85778
EMF200 Gauss Meter \nRemote Infrared (IR) Thermometer \nmotion detector
4310
It is true to say that you cannot feel the "speed" (velocity) of a bus when moving at a constant velocity - - but only in a "perfect" universe - - i.e., no "contact" between the bus and its environment. In reality, you probably perceive high velocity versus low velocity due to changes in vibration, bumps in the road, "wind" whistling, motor engine noise of the bus, etc.\n\nNot only is the earth moving at "constant" velocity (technically, its velocity is decreasing at an extremely low rate; slowing down only as measured over billions of years) - - its "interaction" with its "environment" (in solar system space) is virtually zero.
645586
Try Breezer.   7 & 8 speed internal hubs.
741279
Total distance traveled divided by total time in transit.\n\nr = d/t.
256104
Read Newton's 3rd law of motion.\nAlso, use F=ma to figure out your acceleration.
67865
direction\naverage speed\nconstant
974183
According to the passenger's watch, 5 minutes will have elapsed. Remember, in his/her reference frame (..the bus) time moves along normally.\n\nFrom the standpoint of a watch that's stationary to the passenger, 35.40065 minutes will pass for the nap.\n\nDT = T0 / SQR (1 - v^2/c^2)\n\n'DT' is difference in time between stationary watch and watch in bus\n'T0' is time interval on stationary or moving watch\n'v' is relative velocity between stationary and moving watch\n'c' speed of light
976314
OS maps with contours will do the trick to a reasonable accuracy. If you want real accuracy you will need to level to the nearest OS bench mark or get a GPS reading from an instrument which gives height as well as grid location.\n\nFurther info after reading another answer.\nI am talking about UK here where the ground levels can change quite dramatically from street to street unlike the previous US respondant who must live in a very flat area of the States.
612323
A tachymeter is also used as the name of a logarithmic scale sometimes inscribed around the rim of an analog watch. It can be used to compute speed based on travel time. To use it for this purpose, start the chronograph at a mile marker. At the next mile marker, the point on the scale adjacent to the second hand indicates the speed (in miles per hour) of travel between the two. A standard tachymeter will only determine speeds greater than 60 miles per hour using this method; slower speeds can be measured by decreasing the unit of measurement (to half-miles or kilometers, for example).\n\nThe speed of an object is defined by the equation\nspeed= distance/time\n \nThe tachymeter scale computes the function\nTachymeter dial= 3600/Elapsed time\n\nThe function performed by a tachymeter is independent of unit of distance (i.e. is not specific to miles or kilometers). A tachymeter can be used to measure speed in knots per hour or meters per hour, or to measure an industrial production process in units per hour. A tachymeter is simply a means of converting elapsed time in seconds per X to X per hour.\n\nThe scale is generally only accurate for elapsed times over approximately 7 seconds.
209810
http://www.uark.edu/depts/parking/transit/services.htm
402051
call the bus company's main office and file a "lost" report.  They have a lost and found, if it turns up hopefully someone will call you!  Good luck!
298616
LOL   use the obd??  that not going to tell you much. But then again the question is awfully vague!
878919
http://rampplans.org/rpdo_mini2.html\nyou couldve just google it  but there ya go. enjoy and remember to invite me over to test it out.
561726
Measured from the ground, its speed is = the car speed + the fly speed measured inside the car.\nThe fly can fly so fast because the air inside the car is steady.\nIts the same if you walk inside a train, your speed measured from the ground will be= the train speed + your speed measured from the train. This doesn't mean you can walk so fast, the train floor is steady.\nIt all depends from the reference point you are measuring. Imagine what the speeds would be if you measure them from outer space, results would be totally different.
950795
the answer all lies in the buses wheel. if its speedometer is the same as for a small vehicle. then you are right the bus is alot faster. you see when an engine of a bus makes the same number of rotations as for a small car tyhe distance covered is greater since the tires are large thus the curcumfrence is larger. principle applied:\n\nspeed =distance*time,\ndistance =curcumfrence of tyre \nno of rotations may be the same But. if the bus tyre say be 5meters curcumfrence .\nthen for the small car is 2meters curcumfrence.\nthe mo of rotations on both cars are 10 per second \n\nif the speedometer records its speed using the no of rotations then. the speed of both vehicles will be the no of rotations (in the whole curcumfrence of the tires)*time so \n(5meters*20rotations)/2 seconds=50meters per second\nwhile as for the small car \n(2 meters*20rotations)/2=20meters per second\nif the speedometer records the no of rotations on the axis the definatley the bus covers more ground in less time. thus the effect of feeling moving faster than a small car while traveling in the same speed.