TIME SEC NO. OF VEHICLES OBSERVED 1.0 1.4 2 1.4 1.8 1 1.8 2.2 5 2.2 2.6 36 2.6 3.0 54 3.0 3.4 52 3.4 3.8 25 3.8 4.2 12 4.2 4.6 3 4.6 5.0 2 >> 5.0 No 0 (a) (b) (c) (d) Covert the time to speeds. Calculate the mean, median, standard distribution, variance, and modal speed of the sample. Plot the cumulative frequency and measure the 15th, 50th and 85th percentile speeds. What would you recommend as a speed limit on this facility? Explain your reasoning in making your choice. x1 11 Σnisi Σnis; ² - NX² S = = N-I N

TIME SEC NO. OF VEHICLES OBSERVED 1.0 1.4 2 1.4 1.8 1 1.8 2.2 5 2.2 2.6 36 2.6 3.0 54 3.0 3.4 52 3.4 3.8 25 3.8 4.2 12 4.2 4.6 3 4.6 5.0 2 >> 5.0 No 0 (a) (b) (c) (d) Covert the time to speeds. Calculate the mean, median, standard distribution, variance, and modal speed of the sample. Plot the cumulative frequency and measure the 15th, 50th and 85th percentile speeds. What would you recommend as a speed limit on this facility? Explain your reasoning in making your choice. x1 11 Σnisi Σnis; ² - NX² S = = N-I N

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter4: Traffic Engineering Studies

Section: Chapter Questions

Problem 10P

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