Preface |
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ix | |
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Part I Basic Concepts and Characteristics |
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1 | (136) |
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2 | (15) |
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1.1 Traffic Engineering as a Profession |
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2 | (3) |
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1.2 Transportation Systems and Their Function |
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5 | (4) |
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1.3 History of U.S. Highway Legislation |
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9 | (4) |
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1.4 Elements of Traffic Engineering |
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13 | (1) |
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1.5 Modern Problems for the Traffic Engineer |
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14 | (1) |
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1.6 Standard References for the Traffic Engineer |
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15 | (1) |
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1.7 Metric versus U.S. Units |
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16 | (1) |
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16 | (1) |
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16 | (1) |
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2 Transportation Modes and Characteristics |
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17 | (10) |
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2.1 Classifying Transportation Modes |
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17 | (1) |
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2.2 The Transportation Infrastructure and Its Use |
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18 | (1) |
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19 | (3) |
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2.4 The Capacity of Transportation Modes |
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22 | (3) |
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25 | (2) |
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25 | (1) |
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26 | (1) |
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3 Road-User, Vehicle, and Roadway Characteristics |
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27 | (26) |
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3.1 Dealing with Diversity |
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27 | (1) |
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3.2 Road Users and Their Characteristics |
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28 | (9) |
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3.3 Vehicle Characteristics |
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37 | (10) |
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3.4 Roadway Characteristics |
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47 | (4) |
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3.5 Traffic Control Systems and Characteristics |
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51 | (1) |
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51 | (2) |
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51 | (1) |
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52 | (1) |
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4 Communicating with Drivers: Traffic Control Devices |
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53 | (30) |
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4.1 The Manual on Uniform Traffic Control Devices |
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53 | (4) |
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57 | (6) |
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63 | (12) |
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75 | (6) |
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4.5 Special Types of Control |
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81 | (1) |
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81 | (2) |
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82 | (1) |
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82 | (1) |
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5 Traffic Stream Characteristics |
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83 | (19) |
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83 | (1) |
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5.2 Traffic Stream Parameters |
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84 | (8) |
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5.3 Relationships among Flow Rate, Speed, and Density |
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92 | (2) |
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5.4 A Brief History of Mathematical Models of Freeway Flow---Traffic Flow Theory |
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94 | (6) |
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5.5 Characteristics of Interrupted Flow |
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100 | (1) |
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100 | (2) |
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100 | (1) |
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100 | (2) |
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6 The Concepts of Demand, Volume, and Capacity |
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102 | (12) |
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6.1 When Capacity Constrains Demand |
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102 | (1) |
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6.2 Relationships among Demand, Volume (or Rate of Flow), and Capacity |
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103 | (4) |
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6.3 The Formation of Queues and Their Impacts |
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107 | (2) |
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6.4 Bottlenecks, Hidden Bottlenecks, and Demand Starvation |
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109 | (1) |
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6.5 Capacity versus Queue Discharge |
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110 | (2) |
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112 | (2) |
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112 | (2) |
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7 Level of Service and the Highway Capacity Manual: History and Fundamental Concepts |
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114 | (12) |
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7.1 Uninterrupted and Interrupted Flow Facilities |
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115 | (1) |
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7.2 A Brief Chronology of the Highway Capacity Manual |
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115 | (3) |
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7.3 The Concept of Capacity |
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118 | (1) |
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7.4 The Concept of Level of Service |
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119 | (4) |
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7.5 Service Volumes and Service Flow Rates |
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123 | (1) |
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7.6 The vie Ratio and Its Use in Capacity Analysis |
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124 | (1) |
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125 | (1) |
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125 | (1) |
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125 | (1) |
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8 Intelligent Transportation Systems |
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126 | (11) |
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127 | (1) |
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128 | (1) |
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8.3 ITS Systems Engineering Process |
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129 | (2) |
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8.4 ITS-Related Commercial Routing and Delivery |
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131 | (1) |
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8.5 Sensing Traffic by Virtual and Other Detectors |
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131 | (1) |
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8.6 Connected Vehicle Pilot Studies |
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132 | (2) |
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134 | (1) |
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135 | (2) |
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135 | (1) |
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135 | (2) |
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Part II Traffic Studies and Programs |
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137 | (172) |
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9 Traffic Data Collection and Reduction Methodologies |
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138 | (17) |
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139 | (5) |
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9.2 The Connected Vehicle |
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144 | (1) |
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9.3 Applications of Traffic Data |
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144 | (1) |
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145 | (1) |
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9.5 Manual Data Collection Methodologies |
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146 | (4) |
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9.6 Semi-Automated Studies Using Pneumatic Road Tubes and Similar Devices |
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150 | (1) |
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9.7 Permanent Detectors and Their Use |
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151 | (1) |
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152 | (3) |
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152 | (1) |
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152 | (3) |
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10 Traffic Volume Studies and Characteristics |
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155 | (31) |
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10.1 Volume Characteristics |
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155 | (8) |
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10.2 Intersection Volume Studies |
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163 | (2) |
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10.3 Limited Network Volume Studies |
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165 | (7) |
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10.4 Statewide Counting Programs |
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172 | (5) |
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10.5 Specialized Counting Studies |
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177 | (7) |
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184 | (2) |
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184 | (1) |
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184 | (2) |
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11 Speed, Travel Time, and Delay Studies |
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186 | (32) |
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186 | (1) |
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187 | (18) |
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205 | (6) |
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11.4 Intersection Delay Studies |
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211 | (5) |
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216 | (2) |
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216 | (1) |
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216 | (2) |
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12 Highway Traffic Safety: An Overview |
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218 | (36) |
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218 | (2) |
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12.2 Current and Emerging Priorities |
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220 | (7) |
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12.3 The Highway Safety Manual |
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227 | (11) |
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12.4 Historical Crash Data and Regression to the Mean |
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238 | (1) |
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12.5 Effective Crash Countermeasures |
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238 | (2) |
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12.6 Approaches to Highway Safety |
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240 | (3) |
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12.7 Commonly Used Crash Statistics and Analyses |
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243 | (4) |
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247 | (3) |
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250 | (4) |
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251 | (1) |
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251 | (3) |
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13 Parking: Characteristics, Studies, Programs, and Design |
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254 | (32) |
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255 | (8) |
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13.2 Parking Studies and Characteristics |
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263 | (8) |
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13.3 Design Aspects of Parking Facilities |
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271 | (11) |
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13.4 Parking Programs, Policy, and Management |
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282 | (2) |
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284 | (2) |
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284 | (1) |
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284 | (2) |
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14 Traffic Impact Studies and Analyses |
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286 | (23) |
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14.1 Scope of This Chapter |
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287 | (1) |
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14.2 An Overview of the Process |
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287 | (5) |
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14.3 Tools, Methods, and Metrics |
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292 | (1) |
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14.4 Case Study 1: Driveway Location |
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293 | (3) |
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14.5 Case Study 2: Most Segments of a Traffic Impact Analysis |
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296 | (11) |
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307 | (2) |
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307 | (1) |
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308 | (1) |
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Part III Interrupted Flow Facilities: Design, Control, and Level of Service |
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309 | (334) |
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15 The Hierarchy of Intersection Control |
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310 | (28) |
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15.1 Level I Control: Basic Rules of the Road |
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311 | (2) |
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15.2 Level II Control: YIELD and STOP Control |
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313 | (4) |
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15.3 Level III Control: Traffic Control Signals |
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317 | (16) |
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333 | (5) |
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333 | (1) |
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333 | (5) |
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16 Traffic Signal Hardware |
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338 | (20) |
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16.1 Functional Layouts at a Signalized Intersection |
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338 | (2) |
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340 | (3) |
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16.3 Controller and Other Standards |
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343 | (1) |
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344 | (2) |
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16.5 Convention for Numbering Movements and Phases |
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346 | (1) |
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16.6 Ring-and-Barrier Diagram |
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347 | (3) |
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16.7 Preferential Treatment |
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350 | (1) |
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16.8 ASCT System Objectives |
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351 | (1) |
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16.9 Sensors and Data Feeds |
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351 | (3) |
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16.10 Traffic Signal Display Hardware |
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354 | (1) |
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16.11 Traffic Signal Maintenance |
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355 | (1) |
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356 | (2) |
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356 | (1) |
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356 | (2) |
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17 Fundamentals of Intersection Design and Layout |
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358 | (16) |
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17.1 Intersection Design Objectives and Considerations |
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358 | (1) |
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17.2 A Basic Starting Point: Sizing the Intersection |
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359 | (3) |
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17.3 Intersection Channelization |
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362 | (2) |
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17.4 Special Situations at Intersections |
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364 | (9) |
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373 | (1) |
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373 | (1) |
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373 | (1) |
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18 Principles of Intersection Signalization |
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374 | (29) |
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18.1 Terms and Definitions |
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374 | (3) |
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18.2 Discharge Headways, Saturation Flow, Lost Times, and Capacity |
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377 | (5) |
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18.3 The Critical-Lane and Time-Budget Concepts |
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382 | (5) |
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18.4 The Concept of Left-Turn (and Right-Turn) Equivalency |
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387 | (2) |
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18.5 Delay as a Measure of Effectiveness |
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389 | (11) |
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400 | (3) |
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400 | (1) |
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400 | (3) |
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19 Fundamentals of Signal Timing and Design: Pre-timed Signals |
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403 | (44) |
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403 | (1) |
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19.2 Development of a Signal Phase Plan |
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404 | (15) |
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19.3 Determining Vehicular Requirements for Signal Design and Timing |
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419 | (7) |
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19.4 Determining Pedestrian Signal Requirements |
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426 | (3) |
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19.5 Compound Signal Phasing |
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429 | (1) |
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19.6 Sample Signal Timing Problems |
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430 | (17) |
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442 | (1) |
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443 | (4) |
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20 Fundamentals of Signal Timing and Design: Actuated Signals |
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447 | (20) |
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20.1 Types of Actuated Control |
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448 | (1) |
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20.2 Detectors and Detection |
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449 | (1) |
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20.3 Actuated Control Features and Operation |
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450 | (3) |
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20.4 Actuated Signal Timing and Design |
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453 | (5) |
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20.5 Sample Problems in Actuated Signal Design and Timing |
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458 | (9) |
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464 | (1) |
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464 | (3) |
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21 Signal Coordination for Arterials and Networks |
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467 | (32) |
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21.1 A Key Requirement: A Common Cycle Length |
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467 | (1) |
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21.2 The Time-Space Diagram |
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467 | (2) |
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469 | (1) |
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21.4 Signal Progression on One-Way Streets |
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469 | (6) |
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21.5 Signal Progression for Two-Way Streets and Networks |
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475 | (6) |
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21.6 Types of Progression |
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481 | (4) |
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21.7 Software for Signal Progression Design |
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485 | (1) |
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21.8 Coordination of Signals for Oversaturated Networks |
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486 | (13) |
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495 | (1) |
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495 | (4) |
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22 Capacity and Level of Service Analysis: Signalized Intersections---The HCM Method |
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499 | (46) |
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Part I Analysis of Pre-timed Signalized Intersections |
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500 | (1) |
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22.1 Fundamental Concepts |
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500 | (5) |
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22.2 Model Structure for Pre-timed Signals |
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505 | (1) |
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22.3 Computational Steps in the Model |
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505 | (23) |
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22.4 Interpreting the Results of Signalized Intersection Analysis |
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528 | (1) |
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22.5 Methodological Complexities |
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529 | (7) |
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Part II Analysis of Actuated Signals |
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536 | (1) |
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Part III Calibration Issues |
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536 | (1) |
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22.6 Measuring Prevailing Saturation Flow Rates |
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537 | (1) |
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22.7 Measuring Base Saturation Flow Rates |
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537 | (1) |
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22.8 Measuring Start-Up Lost Time |
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537 | (2) |
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22.9 Calibrating Adjustment Factors |
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539 | (2) |
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22.10 Normalizing Signalized Intersection Analysis |
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541 | (1) |
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542 | (3) |
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542 | (1) |
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542 | (3) |
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23 Planning-Level Analysis of Signalized Intersections |
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545 | (14) |
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23.1 The TRB Circular 212 Methodology |
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545 | (1) |
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23.2 The 2016 HCM Planning Methodology |
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546 | (10) |
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556 | (3) |
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556 | (1) |
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557 | (2) |
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24 Urban Streets and Arterials: Complete Streets and Level of Service |
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559 | (13) |
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24.1 Designing Urban Streets |
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560 | (3) |
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24.2 Level of Service Analysis of a Multimodal Street Segment |
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563 | (7) |
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24.3 Facility Level of Service Analysis |
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570 | (1) |
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570 | (2) |
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570 | (1) |
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571 | (1) |
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25 Unsignalized Intersections and Roundabouts |
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572 | (46) |
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Part I Two Way Stop-Controlled Intersections |
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573 | (1) |
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25.1 TWSC Intersection Operation: A Fundamental Modeling Approach |
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573 | (1) |
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25.2 Computational Steps in TWSC Intersection Analysis |
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574 | (10) |
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25.3 Interpreting Results |
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584 | (5) |
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Part II All-Way STOP-Controlled Intersections |
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589 | (2) |
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591 | (7) |
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598 | (4) |
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602 | (1) |
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25.6 Types of Roundabouts and General Characteristics |
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603 | (1) |
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25.7 Signing and Marking for Roundabouts |
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603 | (5) |
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25.8 Capacity and Level of Service Analysis of Roundabouts |
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608 | (7) |
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615 | (3) |
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615 | (1) |
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616 | (2) |
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26 Interchanges and Alternative Intersections |
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618 | (25) |
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619 | (6) |
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26.2 Alternative Intersections |
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625 | (5) |
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26.3 Level of Service Analysis |
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630 | (8) |
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638 | (5) |
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639 | (1) |
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639 | (4) |
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Part IV Uninterrupted Flow Facilities: Design, Control, and Level of Service |
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643 | (135) |
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27 An Overview of Geometric Design of Roadways |
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644 | (27) |
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27.1 Introduction to Highway Design Elements |
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644 | (2) |
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27.2 Horizontal Alignment of Highways |
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646 | (13) |
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27.3 Vertical Alignment of Highways |
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659 | (6) |
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27.4 Cross-Sectional Elements of Highways |
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665 | (4) |
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669 | (2) |
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669 | (1) |
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669 | (2) |
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28 Capacity and Level of Service Analysis: Basic Freeway and Multilane Highway Segments |
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671 | (32) |
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28.1 Facility Types Included |
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671 | (1) |
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28.2 Segment Types on Freeways and Some Multilane Highways |
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672 | (1) |
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28.3 Generic Speed-Flow Characteristics on Freeways and Multilane Highways |
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672 | (2) |
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28.4 Levels of Service for Freeways and Multilane Highways |
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674 | (2) |
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28.5 Base Speed-Flow Curves |
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676 | (11) |
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28.6 Applications of Base Curves to Capacity and LOS Analysis of Freeways and Multilane Highways |
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687 | (2) |
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28.7 The Heavy Vehicle Adjustment Factor and Related Issues |
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689 | (5) |
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694 | (6) |
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700 | (3) |
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700 | (1) |
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701 | (2) |
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29 Capacity and Level of Service Analysis: Weaving Segments on Freeways and Multilane Highways |
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703 | (25) |
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29.1 Level of Service Criteria for Weaving Segments |
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704 | (1) |
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29.2 Converting Demand Volumes to Flow Rates in pc/h |
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705 | (1) |
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29.3 A Brief History of the Development of Weaving Segment Methodologies |
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705 | (1) |
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29.4 Component Flows in a Weaving Area |
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706 | (1) |
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29.5 Critical Geometric Variables Describing a Weaving Segment |
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707 | (4) |
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29.6 Computational Procedures for Weaving Area Analysis |
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711 | (9) |
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29.7 Sample Problems in Weaving Segment Analysis |
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720 | (8) |
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725 | (1) |
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726 | (2) |
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30 Capacity and Level of Service Analysis: Merge and Diverge Segments on Freeways and Multilane Highways |
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728 | (25) |
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30.1 Level-of-Service Criteria |
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729 | (1) |
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30.2 Converting Demand Volumes |
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729 | (1) |
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30.3 Fundamental Variables Involved in Merge and Diverge Segment Analysis |
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730 | (1) |
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30.4 Computational Procedures for Merge and Diverge Segments |
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731 | (10) |
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30.5 Special Cases in Merge and Diverge Analysis |
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741 | (4) |
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745 | (1) |
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30.7 Sample Problems in Merging and Diverging Analysis |
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745 | (8) |
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751 | (1) |
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751 | (2) |
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31 Operation and Analysis of Freeways and Highways |
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753 | (25) |
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31.1 Traffic Markings on Freeways and Rural Highways |
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753 | (5) |
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31.2 Signing for Freeways and Rural Highways |
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758 | (13) |
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31.3 Establishing and Posting of Speed Limits on Rural Roads |
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771 | (1) |
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31.4 Managed Lanes on Freeways |
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772 | (2) |
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31.5 Active Transportation and Demand Management Strategies |
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774 | (1) |
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31.6 Analysis of Freeway Facilities |
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774 | (4) |
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776 | (1) |
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777 | (1) |
Index |
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778 | |