Gray Notebook archives

The Gray Notebook archives provide access to the past five years of our quarterly analysis of multimodal systems and programs. 

The Gray Notebook analyzes performance trends of multimodal systems and programs for the quarters ending in March, June, September and December each year. Editions are numbered and publish approximately two months after each quarter ends to allow for review and analysis (e.g. for the quarter ending September 30, 2022, the edition was published in early December 2022).

The past five years of Gray Notebooks are listed below and organized by edition number and the quarter we reported on. We can provide earlier PDF editions by request.







Slow down – lives are on the line.

In 2022, speeding continued to be a top reason for work zone crashes.

Even one life lost is too many.

Each year about 670 people are killed nationally in highway work zones. In 2022, Washington had six fatal work zone crashes on state roads.

It's in EVERYONE’S best interest.

95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.