Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Chapter 12, Problem 10P
Given a table with production and attraction data, determine the number of productions and attractions that should be used for each zone in the second iteration.
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Consider the conditions in Practice Problem 5.2. How short would the driver reaction times of oncoming vehicles have to be for the probability of an accident to equal 0.20?
Part 4: Problem-Solving. Solve the following problems. Show all calculations.
1. A Standard Penetration Test (SPT) was conducted at a site, and the following blow counts were
recorded:
Depth: 2 m, Blow count (N): 10
D
D
Depth: 4 m, Blow count (N): 15
Depth: 6 m, Blow count (N): 20
The energy ratio is 60%, and the overburden correction factor CN is 1.1. Calculate the
corrected N-values for each depth.
2. A soil sample was collected from a depth of 3 m using a Shelby tube. The sample had a volume
of 0.01 m³ and a mass of 18 kg. If the water content is 12%, calculate the (a) bulk density, (b) dry
density, and (c) void ratio of the soil. Assume the specific gravity of soil solids (Gs) is 2.65.
3. A Cone Penetration Test (CPT) was conducted at a site, and the following data was obtained:
Depth: 2 m, Cone resistance (qc): 5 MPa
Depth: 4 m, Cone resistance (qc): 8 MPa
Depth: 6 m, Cone resistance (qc): 12 MPa
Estimate the soil type at each depth using typical qc correlations.
Pls show step by step and formula used
Chapter 12 Solutions
Traffic and Highway Engineering
Ch. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Given a table with production and attraction data,...
Ch. 12 - Given a table with production and attraction data,...Ch. 12 - Prob. 12PCh. 12 - Prob. 13PCh. 12 - Prob. 14PCh. 12 - Prob. 15PCh. 12 - Prob. 16PCh. 12 - Prob. 17PCh. 12 - Prob. 18PCh. 12 - Prob. 19PCh. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - Prob. 23PCh. 12 - Prob. 24PCh. 12 - Prob. 25PCh. 12 - Prob. 26PCh. 12 - Prob. 27PCh. 12 - Prob. 28P
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