1. CTR Performance 2013/2014 Cycle Paul Mason Lynn Peterson
Performance Analyst
Lynn Peterson
Secretary of Transportation
CTR Performance
WSDOT Nisqually Board Room
October 23, 2015

2. Foreword – The Latest Aggregate Report
Outdated Aggregate Report (9/18)
Certain sites were initially excluded in the 2013/2014 aggregate report due to response rates.
948 Sites
DAR decreased 2.2%
VMT/Employee decreased 1.4%
18 million more miles annually
Latest Aggregate Report (10/18)
Consistent with previous cycles, some sites were added in, since their somewhat lower response rates are statistically valid
966 Sites
DAR decreased 2.6%
VMT/Employee decreased 3.1%
33 million fewer miles annually

3. The Source – Aggregate Report
***Michael is available for questions at the end of the presentation***

4. The Calculations 2007/2008 2013/2014 Approach:
Replicate the approved methodology used for previous cycles

5. The Calculations - Continued
A Brief Overview:
Compare baseline (2007/2008) results to current 2013/2014 results (at the jurisdiction level)
Drive Alone Rate
Total Weekly Trips
Total Vehicle Miles Traveled (VMT) per Employee per Trip
Convert the weekly survey results into annual numbers
Add up and report the reductions in:
Trips
VMT
Use a conversion factor to convert VMT into a Greenhouse Gas (GHG) reduction

6. Participation Between 2012 and 2014, the Board requested
pilot projects, to test techniques outside of the
survey. As a result, the number of surveys
distributed decreased from ‘12 to ’14.

7. Participation Note in the baseline ‘07/’08 the return rate was 70.6%
There was a drop in response rate in ‘09/’10, and
‘11/’12, with the ‘12 rate being 58.0%.
However, in ‘13/’14, the response rate increased to 66.1%

8. Participation Between 2012 and 2014, the Board requested
pilot projects, to test techniques outside of the
survey. As a result, the number of worksites
distributed decreased from ‘12 to ’14.

9. Non-Drive Alone Rate In the baseline year, the non-drive alone rate
was 34.3%
In subsequent years, the rate has been roughly 37%
So, despite an increase in the number of employees
affected by the program, the mode split for CTR sites
has been able to maintain itself around 37%

10. Vehicle Miles Traveled and Greenhouse Gases
While the above numbers may not look impressive on the surface, the bigger story is that even with a growing economy and adding more and more employees, the vehicle miles traveled per person has improved, decreasing by about 3% from the baseline.

11. Questions about the Aggregate Report?