Select Chapter
Foreword
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Cover Page
List of Figures
Figure 1-1: Vehicle Miles Traveled versus Lane Mileage
Figure 1-2: Freeway Management Programs and Their Relationship with the Surface Transportation Program
Figure 1-3: Document Organization by Main Section
Figure 3-1: Traffic Management Development Program Process
Figure 3-2: Transportation Tier Diagram
Figure 5-1: Time Trends for Speed and Flow (Typical Morning Rush)
Figure 5-2: Volume-Density Relationships
Figure 5-3: Fuzzy Classes
Figure 5-4: SWARM1 Data Flow
Figure 5-5: Comparison of Ramp Meter Queue Storage With and Without a Right-turn Lane on the Arterial
Figure 6-1: High-Level Screening for Ramp Management Strategies
Figure 6-2: Ramp Meter Selection Decision Tree (1 of 2)
Figure 6-3: Ramp Meter Selection Decision Tree (2 of 2)
Figure 6-4: Ramp Closure Decision Tree
Figure 6-5: Decision Tree for Special-Use Treatments that Target Safety Impacts at Merge Points
Figure 6-6: Decision Tree for Special-Use Treatments that Target Neighborhood Impacts
Figure 6-7: Decision Tree for Special-Use Treatments that Target Construction Impacts
Figure 6-8: Decision Tree for Special-Use Treatments that Target Special Event Related Impacts
Figure 6-9: Decision Tree for Special-Use Treatments that Target Policies
Figure 6-10: Ramp Terminal Treatment Decision Tree
Figure 7-1: General Activities and Timeline for Ramp Management Strategy Implementation
Figure 7-2: Systems Engineering Process (“Vee” Diagram)
Figure 8-1: Example of General Operator Responsibilities Outlined in an Operator’s Handbook
Figure 8-2: Example of Detailed Operational Responsibilities Provided in an Operator’s Handbook
Figure 8-3: Example of an Agency/Jurisdictional Contact List
Figure 8-4: Example Media Procedures from an Operator’s Handbook
Figure 9-1: Modeling Versus Measurement – When Should They Be Used?
Figure 9-2: Example Graphic Showing Ramp Metering Impacts on Corridor Volumes
Figure 9-3: Example Graphic Showing Speed Variability Impact Along with Control Variables
Figure 9-4: Sample 3D Graphic Generated from a Simulation Analysis Tool
Figure 10-1: NEPA Process Overview
Figure 10-2: Ramp Meter Elements
Figure 10-3: Example HOV Bypass Lane
Figure 10-4: Example of Freeway-to-Freeway Metering
Figure 10-5: Type 2070V Controller
Figure 10-6: Typical Signal Standard (NTS)
Figure 10-7: Signals Mounted on a Mast Arm (NTS) (simultaneous release only)
Figure 10-8: Typical Passage and Demand Detector Layout (One Lane Ramp)
Figure 10-9: Typical Passage and Demand Detector Layout (Two Lane Ramp)
Figure 10-10: Typical Passage and Demand Detector Loop Layout (Three Lane Ramp with a non-metered HOV lane)
Figure 10-11: Typical Mainline Detector Loop Layout
Figure 10-12: Typical Queue/Exit/Count Loop
Figure 10-13: Extinguishable Message Signs
Figure 10-14: Typical Advance Warning Signing Layout
Figure 10-15: HOV Symbol (NTS)
Figure 10-16: Sample HOV Sign
Figure 10-17: Metered HOV Lane Sign
Figure 10-18: Lunalilo Ramp Closure Experiment Layout
Figure 10-19: Partial Exit Ramp Closure
Figure 10-20: Type III Barricade (Stored Position)
Figure 10-21: Type III Barricade (Deployed)
Figure 10-22: Sample Gate Closure Detail
Figure 10-23: Vertical Swing Arm Traffic Gate (Closed Position)
Figure 10-24: Right Turn on Red Restriction Sign
Figure 10-25: Left-Turn Restriction Sign
Figure 11-1: I-90 Ramp Meter Brochure
Figure 11-2: Ramp Closure Layout for Lunalilo Street On-Ramp
Figure 11-3: Equation. Freeway Speed
Figure 11-4: Evolution of Speeds Across the Three Freeway Lanes (7:45 - 8:00 AM)
Foreword
Chapter 1: Introduction
Chapter 2: Ramp Management and Control: Overview
Chapter 3: Ramp Management and the Traffic Management Program
Chapter 4: Preparing for Successful Operations
Chapter 5: Ramp Management Strategies
Chapter 6: Developing and Selecting Strategies and Plans
Chapter 7: Implementing Strategies and Plans
Chapter 8: Operation and Maintenance of Ramp Management Strategies
Chapter 9: Ramp Performance Monitoring, Evaluation and Reporting
Chapter 10: Planning and Design Considerations
Chapter 11: Case Studies
List of Tables
List of Figures
Download Adobe Acrobat Reader
FHWA Home
|
Feedback
|
Privacy Policy
|
Operations Home
United States Department of Transportation -
Federal Highway Administration
|