For the given spot speed data, conduct the following: 1. Plot the frequency and cumulative frequency distribution of the speed data. 2. Calculate the: Average Speed, Median Speed and Modal Speed, The pace and the percent of vehicle in pace and Standard deviation and estimated standard deviation. Speed (kph) Frequency of Vehicles(n) 81.6 86.6 1 89.3 92.2 4 95.2 8 98.5 10 102 13

For the given spot speed data, conduct the following: 1. Plot the frequency and cumulative frequency distribution of the speed data. 2. Calculate the: Average Speed, Median Speed and Modal Speed, The pace and the percent of vehicle in pace and Standard deviation and estimated standard deviation. Speed (kph) Frequency of Vehicles(n) 81.6 86.6 1 89.3 92.2 4 95.2 8 98.5 10 102 13

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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From the following data of a freeway surveillance, there are 7 vehicles under observation and the following distances are the distance each vehicle had traveled when observed every 2 sec. Compute the space mean speed in kph. Note: use two decimal places Distance Vehicles (m) 24 24 20 21 23 3. 4-
from the following data of a freeway surveillance, there are 5 vehicles traveling distances "S" when observed on the two photographs taken every 2 seconds apart. Vehicles “S" (meters) 1 24.4 2 18.8 3 24.7 4 26.9 5 22.6 Determine the flow of traffic. Group of answer choices 8000 yph. 8500 yph 9000 yph 9500 yph.
This is a three-part problem. Two sets of students are collecting traffic data at two roadway stations, station 130 + 00 and station 145 +00. Observations at station 130 + 00 show that five vehicles passed that section at intervals of 0, 3, 4, 3, and 5 sec, respectively. If the speeds of the vehicles were 50, 45, 40, 45, and 50 mph respectively. Note: Stationing is fundamental to highway plans. A station is the horizontal measurement along the Construction Survey Line of a project. Distances are measured and points are identified on plans with reference to station numbers. One hundred feet is equivalent to one station. Highway stationing might be compared with a rope having knots at 100-foot intervals. The beginning end of the rope would be 0, the first knot at 100 feet would be Station Number 1 and would be written as 1+00. The second station number would be 2 (which is 200 feet from the beginning) and would be written as 2+00, and so on. Part A. Determine the time mean speed, in mph.…
PROBLEM 6: Four vehicles passing through the SLEX has the following observation. Determine the time mean speed. Vehicles Time of passing (sec) | Spot speed (kph) 1 1.5 55.4 2 6.0 56.8 3 8.0 53.6 4 12.00 48.9
1. The speed of the traffic flowing past a certain downtown exit between the hours of 1:00 P.M. and 6:00 P.M. is approximately V= t3 - 10.5t + 30t + 20 miles per hour where t = number of hours past noon. Use the Bisection method in finding the fastest speed of the traffic between 1:00 P.M. and 6:00 P.M. in mph? Find the absolute relative approximate error up to 0.10%.
From the following data of a freeway surveillance, there are 5 vehicles traveling distances "S" when observed on the two photographs taken every 2 seconds apart. VEHICLES "S" (in meters) 1 2 3 4 5 24.4 18.8 24.7 26.9 22.6 5] Determine the space mean speed (in kph). 6] Determine the flow of traffic (veh/hr). 7] Determine the density of traffic (veh/km).
4. The statistical data of an urban spot speed study is given below. A set of 130 observations of spot speeds made by timing vehicles through a "Trap" of 88ft. The stopwatch was used to obtain data. The stopwatch data are grouped into 0.2 sec. Classes. The first column of the table shows the midpoint of each group. The second column of the table shows the frequency of the observations. Compute the following statistical values. a) The speed of each time class in mph (show it in the third column) b) The cumulative percent of vehicles traveling at or below indicated speed shown in the third column in mph (show it in the forth column) c) Mean or average speed (time-mean speed), median, mode, standard deviation, standard error of the mean, average time, space-mean speed, variance, 15%, and 85% speed. d) Plot the cumulative percentage, and show the statistical values of item (c) on the graph. e) Plot the frequency distribution curve and show the statistical values on the graph.
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