Exam 1 Review - Exam 1: Review TTE 4004 9/23/11 Outline...

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Exam 1: Review TTE 4004 9/23/11
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Outline Chapter 1 - Introduction Chapter 2 – Vehicle Performance Resistance Tractive Effort Chapter 3 – Geometric Design Vertical Curves Horizontal Curves
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Chapter 1 Introduction
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Introduction to Transportation Engineering Why is transportation important? Role of the transportation engineer? Components of transportation engineering? Impacts of transportation engineering? Crash causes? Congestion reduction strategies Human behavior? Technology? Focus areas for transportation engineers?
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Chapter 2 Vehicle Performance
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Vehicle Performance Two main factors that govern roadway design? Two opposing forces that determine the performance of vehicles on straight sections of roadway?
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Resistance 3 Types? Aerodynamic Rolling Grade (gravitational) Power to overcome resistance?
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Aerodynamic Resistance Air density is a function of …? How does it change based on these factors? Drag coefficient: reasonable values? Frontal area: how do we estimate? 2 2 V A C R f D a ρ = (Eq. 2.3)
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Friction: Vehicle’s internal mechanical friction Interaction between tires and roadway surface W f R rl rl = (Eq. 2.6) + = 147 1 01 . 0 V
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This note was uploaded on 12/07/2011 for the course TTE 4004 taught by Professor Staff during the Fall '08 term at University of Florida.

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Exam 1 Review - Exam 1: Review TTE 4004 9/23/11 Outline...

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