Traffic engineering what? why? how?

TABLE OF CONTENTS Pllge . 1 Why is Traffic Engineering Essential? ... , ..... 2 How Does the Traffic Engineer Solve Traffic Problems? 3 What is Trattic Engineering? How Does the Traffic Engineer Promote Safer Traffic Operation? ,..... 4 5 What are Traffic Control Devices? . What is Meant by Uniformity of Traffic Control Devices? 6 How are Speed Limits Determined? .... 8 .. What Effect Do Posted Speed Limits Have on Actual Traffic Speeds? " 9 When Should Traffic Signals Be Installed? 10 What is the Primary Purpose of Guide Signs? . . 12 How are Guide Sign Messages Determined? 14 Is Angle Curb Parking a Vanishing Custom? 16 What Do Arizona Laws Say About Angle Parking? 18 Why Parallel Curb Parking? 19 Does Prohibition of All Curb Parking Help Traffic Movement? .... .. .. .. .. .. .. . . ... . 20