For the given speed information in the table below find the standard deviation and the 85th percentile speed? Speed class (mi hr) Frequency 3 36-399 40 43 9 44 47 9 48 519 52 55 9 56-59 9 60 63.9 64-67 9 15 13
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Q: 3. Compute the Time Mean Speed and Space Mean Speed Vehicle Time (s) Speed (km/hr) A 15 100 25 150…
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Q: For spot speed study analysis find the estimate standard deviation: 100 90 80 70 60 50 30 20 10 35…
A: Median speed Mid point speed 36-37 ; x+y2=36+372=732=36.5 frequency of 36-37 ; x+y2=8+92=172=8.5…
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Q: Sir Alfonse sent out five students to measure a distance between two points marked on the ground…
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A: 1) Mean = Ratio of sum of all the speech to the number of vehicles Observed.
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Q: Vehicle Travel Time ( s) 1 156 2 144 3 144 4 168 5 126 6. 132
A:
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- For the distance (ft) observations given below, find the most probable value and standard deviation. 100.01, 100.05, 99.95, 99.98, 100.03, and 99.97A distance of 300 meters was measured with a tape measure on several stages and with a difference in the angle of inclination as shown in the following table, and after calculating the amount of correction due to the inclination, calculate the real distance if the inclination was Tilt 2 ° 20 ' 4 ° 12 ' 1 ° 06 ' The distance is 100 150 50A distance AB is observed repeatedly using the same equipment and procedures, and the results, in meters, are listed below: 69.401, 69.400, 69.402, 69.396, 69.401, 69.401, 69.396, and 69.404. 1. Determine the range within which the observations should fall 90% of the time. Express your answers in meters to six significant figures separated by a comma. 2. What percentage of values fall within this range? 3. Determine the range within which the observations should fall 95% of the time. Express your answers in meters to six significant figures separated by a comma. 4. What percentage of values fall within this range?
- The observed interior angles of a triangle are A =35°14’37”, B = 96°30’09”, C= 48°15’05”. Determine the discrepancy for the given observation and the most probable value of each angle. a. +09" b. +27'09" c. +27.09" d. +2'09"A distance AB is observed repeatedly using the same equipment and procedures, and the results in meters are the following; 101.21 100.50 100.85 100.36 102.10 101.25 101.38 101.64 102.05 101.30 What is the standard deviation?A surveyor counted 50, 52, 53, 51, 53, and 51 paces in walking along a 45 – m course laid out on a concrete pavement. He then took 768, 771, 772, 770, 769, and 770 paces in walking an unknown distance CD. Calculate his pace factor and the length of the line CD. Deternmine the percent error if the line CD has an actual length of 670m
- Sir Alfonse sent out five students to measure a distance between two points marked on the ground using their pace factor. The students came up with the following five different values: 50.13, 47.90, 51.04, 50.47, and 48.22 meters. Assuming these values are equally reliable and that variations result from accidental errors, determine the most probable value of the distance measured.A) What is the time-mean speed? Present your answer in units of [feet/sec] to two decimal places? B) What is the spacing between the vehicles in Image 1? Present your answer to the nearest foot. C) I calculate that the (average) density obtained from these images is 18.2 [veh/mi]. Assume that this value is correct, even if I made a mistake.If a loop detector sensing these vehicles was occupied 5% of the time, what is the average length of the vehicles? Present your answer in units of feet to one decimal place.An angle is observed repeatedly using the same equipment and procedures. Calculate (a) the angle's most probable value, (b) the standard deviation, and (c) the standard deviation of the mean. 23°30'00", 23°29 40", 23°30ʻ15", 23°29'50"
- Figure 3 shows a square plate is constrained within the slots at A and B. When θ = 25°. Point A is moving at va = 12m/s. Determine the velocity point D at this instant and the trajectory of the instantaneous center of zero velocity(IC) when the square plate moves from θ = 25° until θ = 0°. When θ = 0°, determine the velocity of point B and point C if the va = 20m/s. Another case, when θ = 25° and the velocity of point A is increase to 14m/s, does the trajectory of IC change? Justify your answerProject a two-lane-two-way road that passes through mostly wavy terrain according to your data and find out at what service level the road will work. Peak hour traffic volume= 800 Peak hour factor= 0.91 Passing ban cut rate (%)= 40 Distribution according to directions (%)= 60/40 Hard shoulder width (meters)= 2 Strip width (meters)= 2.70 Truck Ratio= %9 Bus Ratio= %10how can errors occur when trying to measure the average speed of a an actual car passing by with a meter tape