Transportation Systems Engineering

7.

Traffic Operations and Control

7.1.

Traffic Control Devices

7.1.1.

7.1.1.1.

Regulatory Signs

7.1.1.1.1.

Stop and Yield Signs

7.1.1.1.2.

Speed Limit Signs

7.1.1.1.3.

Turn Restriction Signs

7.1.1.2.

7.1.1.2.1.

Curve Warning Signs

7.1.1.2.2.

Intersection Warning Signs

7.1.1.2.3.

Pedestrian Crossing Signs

7.1.1.3.

7.1.1.3.1.

Destination Signs

7.1.1.3.2.

7.1.1.3.3.

Street Name Signs

7.1.2.

Pavement Markings

7.1.2.1.

Longitudinal Markings

7.1.2.1.1.

7.1.2.1.2.

7.1.2.1.3.

7.1.2.2.

Transverse Markings

7.1.2.2.1.

7.1.2.2.2.

Crosswalk Markings

7.1.2.2.3.

7.1.2.3.

Special Markings

7.1.2.3.1.

7.1.2.3.2.

Word and Symbol Markings

7.1.2.3.3.

Colored Pavements

7.1.3.

Traffic Control Islands

7.1.3.1.

Channelizing Islands

7.1.3.2.

Pedestrian Refuge Islands

7.1.3.3.

7.2.

Traffic Signal Systems

7.2.1.

Signal Warrants and Justification

7.2.1.1.

Vehicular Volume Warrants

7.2.1.2.

Pedestrian Volume Warrants

7.2.1.3.

School Crossing Warrants

7.2.1.4.

Coordinated Signal Warrants

7.2.2.

Signal Timing Design

7.2.2.1.

7.2.2.1.1.

7.2.2.1.2.

7.2.2.1.3.

Protected vs Permitted Phases

7.2.2.2.

Timing Parameters

7.2.2.2.1.

Cycle Length Optimization

7.2.2.2.2.

Green Time Allocation

7.2.2.2.3.

Clearance Intervals

7.2.3.

Actuated Signal Control

7.2.3.1.

Detection Systems

7.2.3.1.1.

Inductive Loop Detectors

7.2.3.1.2.

Video Detection

7.2.3.1.3.

Microwave Detectors

7.2.3.2.

Controller Logic

7.2.3.2.1.

7.2.3.2.2.

7.2.3.2.3.

Force-Off Logic

7.2.4.

Coordinated Signal Systems

7.2.4.1.

Arterial Progression

7.2.4.2.

Bandwidth Optimization

7.2.4.3.

Offset Optimization

7.2.4.4.

Network Signal Timing

7.3.

Freeway Management Systems

7.3.1.

7.3.1.1.

Metering Algorithms

7.3.1.2.

System-Wide Coordination

7.3.1.3.

Queue Management

7.3.2.

Incident Management

7.3.2.1.

Incident Detection

7.3.2.2.

Emergency Response

7.3.2.3.

Traffic Management During Incidents

7.3.3.

Variable Message Signs

7.3.3.1.

Message Content

7.3.3.2.

Driver Response

7.3.3.3.

System Integration

7.3.4.

7.3.4.1.

High-Occupancy Vehicle Lanes

7.3.4.2.

High-Occupancy Toll Lanes

7.3.4.3.

Express Toll Lanes

7.3.4.4.

Enforcement Strategies

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8. Intelligent Transportation Systems