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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 (2011-2014). The full subject index for Congestion on state highways can be accessed here (pdf 397 kb).

Congestion on State Highways
Subject/Topic 2011 2012 2013 2014
Before and After Case Studies 11/Q2 12/Q2 13/Q2 14/Q2
Congestion Dashboard 11/Q2 12/Q2 13/Q2 14/Q2
Congestion Measurement Principles 11/Q2 12/Q2 13/Q2 14/Q2
Construction Traffic Mitigation 11/Q2 12/Q2    
Corridor Capacity Analysis     13/Q2 14/Q2
Cost of Commute Congestion   12/Q2 13/Q2 14/Q2
Data Collection 11/Q2 12/Q2 13/Q2 14/Q2

Economic Factors that Affect Travel Times
11/Q2
11/Q4

12/Q2
13/Q2
13/Q4

14/Q2
Executive Summary of Measures and Results 11/Q2 12/Q2 13/Q2 14/Q2

Factors Affecting Recurring and Nonrecurring Congestion
11/Q2
11/Q4

12/Q2
   
Fatal Collisions Statewide and in the Puget Sound Area 11/Q2 12/Q2    
Freeway HOV and HOT Lane System 11/Q2 12/Q2 13/Q2 14/Q2
Greenhouse Gas Emissions in the Central Puget Sound Area     13/Q2 14/Q2


High Occupancy Toll (HOT) Lanes


11/Q2


12/Q2
13/Q1
13/Q2
13/Q4
 

14/Q2
High Occupancy Vehicle (HOV) Lanes        
        Lane Miles Added 11/Q2 12/Q2 13/Q2 14/Q2
        Lane Reliability on Major Puget Sound Commute Routes 11/Q2 12/Q2 13/Q2 14/Q2
        Person Throughput: HOV vs. General Purpose Lanes 11/Q2 12/Q2 13/Q2 14/Q2
        Relationship to Transit Ridership 11/Q2 12/Q2 13/Q2 14/Q2
        Travel Times on Major Puget Sound Commute Routes 11/Q2 12/Q2 13/Q2 14/Q2
        User Volumes and Compliance 11/Q2 12/Q2    
Highway Speed Thresholds for Congestion Measurement 11/Q2 12/Q2 13/Q2 14/Q2
Intelligent Transportation Systems (ITS) 11/Q2 12/Q2 13/Q2 14/Q2
Key Congestion Performance Measures 11/Q2 12/Q2 13/Q2 14/Q2
Marine Highways Performance     13/Q2 14/Q2
Moving Ahead for Progress in the 21st Century (MAP-21): Capacity-related Reporting Requirements    
13/Q2
 
14/Q3
Moving Washington: WSDOT's Strategies to Fight Congestion        
        Add Capacity Strategically 11/Q2 12/Q2    
        Balanced Strategies 11/Q2 12/Q2    
        Manage Demand 11/Q2 12/Q2    
        Operate Efficiently 11/Q2 12/Q2    
Percent of State Highway System Congested or Delayed 11/Q2 12/Q2 13/Q2 14/Q2
Results Washington: Congestion Measures     13/Q2 14/Q2
Severe Congestion by Duration and Frequency        
        On Central Puget Sound Commute Routes 11/Q2 12/Q2 13/Q2 14/Q2
        On Central Puget Sound Commute Routes     13/Q2 14/Q2
Texas Transportation Institute Annual Urban Mobility
Report Rankings

11/Q2
     
Throughput Productivity at Select Puget Sound Locations 11/Q2 12/Q2 13/Q2 14/Q2
Traffic Volumes at Selected Locations     13/Q4 14/Q2
Transit Ridership in the Central Puget Sound Area     13/Q2 14/Q2
Travel Delay        
        Cost of Travel Delay 11/Q2 12/Q2 13/Q2 14/Q2
        On All State Highways 11/Q2 12/Q2 13/Q2 14/Q2
        On Major Puget Sound Commute Routes 11/Q2 12/Q2 13/Q2 14/Q2
        On Snoqualmie Pass     13/Q2  
        On State Highways by Urban Area 11/Q2 12/Q2 13/Q2 14/Q2
        Statewide Per Capita Delay 11/Q2 12/Q2 13/Q2 14/Q2

Travel Time Trends Semi-Annual Update
11/Q2
11/Q4

12/Q2
13/Q1
13/Q4

14/Q2
Travel Times        
        On Eastern Washington (Spokane Area) 
        Commute Routes

11/Q2

12/Q2

13/Q2
 
14/Q2


        On Major Central Puget Sound Commute Routes

11/Q2
11/Q4


12/Q2
13/Q1
13/Q2
13/Q4


14/Q2
        On South Puget Sound Commute Routes     13/Q2 14/Q2
        On Southwest Washington (Vancouver Area) 
        Commute Routes
   
13/Q2
 
14/Q2
        On Uncongested Commute Routes 11/Q2 12/Q2 13/Q2 14/Q2
        Reliability on Major Puget Sound Commute Routes 11/Q2 12/Q2 13/Q2 14/Q2
        Reliability on South Puget Sound Commute Routes     13/Q2 14/Q2
Vehicle Miles Traveled        
        Annual and Per Capita on All Public Roads and 
        State Highways

11/Q2

12/Q2

13/Q2
 
14/Q2
        On Major Puget Sound Commute Routes 11/Q2 12/Q2 13/Q2  
        On State Highways by Urban Area 11/Q2 12/Q2    

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