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The table below lists subjects included in the most recent four years of the Gray Notebook (2011-2014). The full subject index for travel information can be accessed here (pdf 95 kb).
Travel Information
Subject/Topic
2011
2012
2013
2014
Number of Calls to Travel Information (1-800-695-ROAD and 511)
11/Q1
12/Q1
13/Q1
14/Q1
Revenue from WSDOT website advertising
Traveler Information Services Overview
Types of Information Requested to 511 Travel Information
Web-Based Tools (Blog, YouTube, Twitter, Podcasting, RSS, Mobile Internet)
Website Usage and Page Views
Winter-Season 511 Hotline Calls by Category
Back to Subject List