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Gray Notebook Subject Index: Congestion

The table below lists subjects included in the most recent four years of the Gray Notebook (2013-2016).

Congestion on State Highways
Subject/Topic 20132014 2015 2016 
Before and After Case Studies13/Q214/Q215/Q3 
Congestion Dashboard13/Q214/Q215/Q3 
Congestion Measurement Principles13/Q214/Q215/Q3 
Construction Traffic Mitigation    
Corridor Capacity Analysis    
        Amtrak Cascades  15/Q3 
        Ferries13/Q214/Q215/Q3 
        Interstate 513/Q214/Q215/Q3 
        Interstate 9013/Q214/Q215/Q3 
        Interstate 40513/Q214/Q215/Q3 
        South Puget Sound Interstate 513/Q214/Q215/Q3 
        Spokane Region Interstate 9013/Q214/Q215/Q3 
        State Route 16713/Q214/Q215/Q3 
        State Route 52013/Q214/Q215/Q3 
        Tri-Cities US 395 Corridor  15/Q3 
        Vancouver Region I-5 and I-20513/Q214/Q215/Q3 
Cost of Commute Congestion13/Q214/Q215/Q3 
Data Collection13/Q214/Q2  

Economic Factors that Affect Travel Times
13/Q2
13/Q4
14/Q2
14/Q4
15/Q2
15/Q3
 
Executive Summary of Measures and Results13/Q214/Q215/Q3 

Factors Affecting Recurring and Nonrecurring Congestion

 
   
Fatal Collisions Statewide and in the Puget Sound Area    
Freeway HOV and HOT Lane System13/Q214/Q215/Q3 


High Occupancy Toll (HOT) Lanes
13/Q1
13/Q2
13/Q4


14/Q2


 
 
High Occupancy Vehicle (HOV) Lanes    
        Lane Miles Added13/Q214/Q2  
        Lane Reliability on Major Puget Sound Commute Routes
13/Q2

14/Q2

15/Q3
 
        Person Throughput: HOV vs. General Purpose Lanes13/Q214/Q215/Q3 
        Relationship to Transit Ridership13/Q214/Q215/Q3 
        Travel Times on Major Puget Sound Commute Routes13/Q214/Q2  
        User Volumes and Compliance    
Highway Speed Thresholds for Congestion Measurement13/Q214/Q215/Q3 
Intelligent Transportation Systems (ITS)13/Q214/Q2  
Key Congestion Performance Measures13/Q214/Q2  
Moving Ahead for Progress in the 21st Century (MAP-21): Capacity-related Reporting Requirements 
13/Q2

14/Q3

15/Q3
 
Moving Washington: WSDOT's Strategies to Fight Congestion    
        Add Capacity Strategically    
        Balanced Strategies    
        Manage Demand    
        Operate Efficiently    
Percent of State Highway System Congested or Delayed13/Q214/Q215/Q3 
Results Washington: Congestion Measures13/Q214/Q215/Q3 
Severe Congestion by Duration and Frequency    
        On Central Puget Sound Commute Routes13/Q214/Q215/Q3 
        On Central Puget Sound Commute Routes13/Q214/Q215/Q3 
Throughput Productivity at Select Puget Sound Locations13/Q214/Q215/Q3 

Traffic Volumes at Selected Locations
 
13/Q4
14/Q2
14/Q4

15/Q2
 
Travel Delay    
        Cost of Travel Delay13/Q214/Q215/Q3 
        On Major Puget Sound Commute Routes13/Q214/Q215/Q3 
        On Snoqualmie Pass13/Q2   
        On State Highways by Urban Area13/Q214/Q215/Q3 
        Statewide13/Q214/Q215/Q3 

Travel Time Trends Semi-Annual Update
13/Q1
13/Q4
14/Q2
14/Q4
15/Q2
15/Q4
 
Travel Times and Reliability    
        On Eastern Washington (Spokane Area) 
        Commute Routes

13/Q2

14/Q2

15/Q3
 


        On Major Central Puget Sound Commute Routes
13/Q1
13/Q2
13/Q4

14/Q2
14/Q4

15/Q2
15/Q3
 
        On South Puget Sound Commute Routes13/Q214/Q2 15/Q3 
        On Southwest Washington (Vancouver Area) 
        Commute Routes

13/Q2 

14/Q2

15/Q3
 
        On Uncongested Commute Routes13/Q214/Q215/Q3 
Vehicle Miles Traveled    
        Annual and Per Capita on All Public Roads and 
        State Highways

13/Q2

14/Q2

15/Q3
 
        On Major Puget Sound Commute Routes13/Q2   
        On State Highways by Urban Area    

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