Course Name Semester Homework CVE 350- Transportation Engineering Fall 2024 1 Problem: Determining Speed Characteristics from a Set of Speed Data [10 points] The table below shows the speed data collected on an urban highway during a traffic speed study. Develop the frequency histogram and the frequency distribution of the data and determine: 1. The arithmetic mean speed 2. The standard deviation 3. The median speed 4. The pace (range within which most vehicles are traveling) 5. The mode or modal speed 6. The 85th-percentile speed Car Speed Car Speed Car Speed Car Speed No. (km/h) No. (km/h) No. (km/h) No. (km/h) 1 32.5 13 44.6 25 48.7 37 52 2 40.1 14 49.3 26 50.6 38 59 3 36.4 15 47.2 27 55.4 39 54.3 4 50.8 16 52.1 28 53.1 40 61 5 38.9 17 42.7 29 60.2 41 47.7 6 55.5 18 44.2 30 49.9 42 58.2 7 43.3 19 51 31 57.5 43 46.9 46.8 20 47.9 32 62.5 44 50 9 39.7 21 41.5 33 40.8 45 48.3 10 50.2 22 11 56.4 23 12 34.7 24 222 53.6 34 44.5 46 45.4 50.9 35 58.3 47 51.9 48.4 36 49.2 48 60.1

Course Name Semester Homework CVE 350- Transportation Engineering Fall 2024 1 Problem: Determining Speed Characteristics from a Set of Speed Data [10 points] The table below shows the speed data collected on an urban highway during a traffic speed study. Develop the frequency histogram and the frequency distribution of the data and determine: 1. The arithmetic mean speed 2. The standard deviation 3. The median speed 4. The pace (range within which most vehicles are traveling) 5. The mode or modal speed 6. The 85th-percentile speed Car Speed Car Speed Car Speed Car Speed No. (km/h) No. (km/h) No. (km/h) No. (km/h) 1 32.5 13 44.6 25 48.7 37 52 2 40.1 14 49.3 26 50.6 38 59 3 36.4 15 47.2 27 55.4 39 54.3 4 50.8 16 52.1 28 53.1 40 61 5 38.9 17 42.7 29 60.2 41 47.7 6 55.5 18 44.2 30 49.9 42 58.2 7 43.3 19 51 31 57.5 43 46.9 46.8 20 47.9 32 62.5 44 50 9 39.7 21 41.5 33 40.8 45 48.3 10 50.2 22 11 56.4 23 12 34.7 24 222 53.6 34 44.5 46 45.4 50.9 35 58.3 47 51.9 48.4 36 49.2 48 60.1

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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Estimate the maximum number of cars in a single lane of traffic that would pass a check-point in one hour at an average speed of 50 mph. Safe driving practice requires one car length of spacing for each 10 mph speed. (a) Layout the procedure for making the estimation including assumptions, diagrams, equations, etc.
Example: 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 2 92.2 4 95.2 8 98.5 10 102 13 105.8 15 109.9 11 114.3 8 119 124.2 1 129.9
Traffic engineering (Find space mean speed & time mean spead
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.
The Table below shows the data collected on a urban highway in Accra during a speed study. Develop the frequency histogram and the frequency distribution of the data and determine: i. The arithmetic mean speed ii. The standard deviation The median speed The mode or modal speed iii. iv. The 85th-percentile speed v. ** use the intervals of 34 - 35.9, 36– 37.9, 38– 39.9 and so on.... Speed (km/h) Speed (km/h) Car Speed (km/h) Car Car Car Speed (km/h) No. No. No. No. 35.1 46.1 56.0 23 24 45 47.8 67 44.0 54.2 46 47.1 68 49.1 45.8 25 52.3 47 34.8 69 49.2 44.3 26 57.3 48 52.4 70 56.4 36.3 27 46.8 49 49.1 37.1 71 48.5 57.8 36.8 45.4 48.6 6 54.0 28 50 72 42.1 29 51 65.0 73 8. 50.1 30 55.8 52 49.5 74 52.0 51.8 50.8 9 31 43.3 53 52.2 75 49.8 10 32 55.3 54 48.4 76 63.4 11 38.3 33 39.0 55 42.8 77 60.1 12 44.6 34 53.7 56 49.5 78 488 13 45.2 35 40,8 57 48.6 79 52.1 14 41.1 36 54.5 58 41.2 80 48.7 15 35.1 37 51.6 59 48.0 81 61.8 16 50.2 38 51.7 60 58.0 82 56.6 17 54.3 39 50.3 61 49.0 83 48.2 18 45.4…
The following speed data Was collected Using a radar gun on an arterial street. Estima te Speed Group (mph) Frequency 10 17 36 66 84 16-20 a) time mean speed 2) -25 26-30 31-35 36-40 41-45 46-50 ら1-55 56-60 b) 85 *t*percentile speed c) Modal speed d) Pace 70 50 21
What are the different types of information which you can derive from distance time graph of severalvehicles on a traffic stream? Explain with examples
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Please solve this question. Subject: Transportation engineering . Problem No.5 For the speed data in the table below, find the mean speed and the Standard Devaition of speed. Also find the 85th percentile, the 15th percentile and the median (50th percentile) speed from the cumulative frequency curve. Also find the Pace and Mode.
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q.complete. Answer.