Drive Alone Rate

the number of drive-alone commute trips

________________________________

= Drive-Alone Rate

the total number of potential commute trips

Example:

Joe works five days a week and drives alone on three of those days. Joe's drive-alone rate can be calculated as follows:

3 (number of drive-alone commute trips)

________________________________

= 60% (Drive-Alone Rate)

5 (total number of potential commute trips)

If your response rate is below 70% the difference between your rate and 70% will be "filled-in" with drive alone trips. This will hurt your survey results and may mean that your company does not meet its CTR goals.


	Steps to Surveying Determine when you survey. You can contact your ETR to find out the survey schedule for your site. Usually you will be notified at least 45 days in advance of your survey period. If you need an extension on the timing of your survey, please send a written request. Determine whom you will survey. Select your survey method from the online or paper format. Complete and return a Survey Response Form Distribute survey instrument to employees. Collect completed surveys from employees. There is a required 70% response rate on the state-provided survey. To close out an online survey, email Rick Cranford at rick.cranford@kingcounty.gov. To return paper surveys, call 206-684-4444 for courier pick-up. Remember to complete your Employer ID sheet and include it with your surveys. Review your survey results report when it is sent to you.