Q1/ Use the following speed data collected from 2-lanes freeway section of 0.5 km under free- flow conditions, determine: 1- density, 2-space headway, 3- time mean speed, 4-space mean speed, 5- standard deviation, 6-variance. Speed, kph Frequency 36-40 8 41-45 10 46-50 14 51-55 22 56-60 17 61-65 11 66-70 71-75 4 12 76-80 2

Q1/ Use the following speed data collected from 2-lanes freeway section of 0.5 km under free- flow conditions, determine: 1- density, 2-space headway, 3- time mean speed, 4-space mean speed, 5- standard deviation, 6-variance. Speed, kph Frequency 36-40 8 41-45 10 46-50 14 51-55 22 56-60 17 61-65 11 66-70 71-75 4 12 76-80 2

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter9: Capacity And Level Of Service For Highway Segments

Section: Chapter Questions

Problem 17P

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