(Oregon Administrative Rules 340-242-0200 through 0290), require
that employers survey their employees to demonstrate progress toward
a 10% commute trip reduction goal.
The survey provides the employer and DEQ with the following:
- An auto trip rate which is the number of commute vehicles
arriving at a work site divided by the number of employees that
report to the work site;
- Ideas for incentives to encourage employees who drive alone to
choose another commute method and;
- Annual follow-up surveys will measure progress toward meeting
the commute trip reduction target.
There are several different ways to perform the ECO survey.
Currently, most employers either survey through TriMet or DEQ.
1. Determine which survey option you are going to use
TriMet: provides survey processing at no cost to
employers affected by the ECO rules who are working to develop
and/or maintain transportation plans. TriMet offers both an on-line
survey and a paper survey. TriMet tabulates the results and sends a
copy to DEQ. Call TriMet's Employer Services at 503-962-7670.
- Perform the survey using DEQ’s materials. You can
download the necessary forms from the DEQ ECO website. You will need
to copy and distribute the surveys, tabulate your own results and
submit the ECO survey work sheet to DEQ. Call 503-229-6154 or
- The Lloyd
Transportation Management Association performs surveys for
members. Contact TMA at 503-236-6441.
offers Wilsonville area employers free assistance with surveying
(online or paper) and creating trip reduction plans. Contact SMART
Westside Transportation Alliance performs surveys for members.
- Develop your own survey using expertise within your own
- Contract with a private firm.
ECO Resource List
Regardless of which option you choose, you need to use a DEQ
approved survey. If in doubt, give us a call at 503-229-6154 or
a copy of your proposed survey.
2. Set a date for your survey
Do not survey during a time when lots of employees are likely to be
on vacation or the week before or after a holiday.
3. Determine which employees to survey
OAR 34-424-0060: Should All Employees at a Work site be Counted?
4. Plan distribution method
This will depend on which survey option you choose. Many employers
now prefer to use an on-line survey
75% Response Rate
- The ECO rules require at least a 75% employee response rate for
compliance. The goal is to measure actual trips with a high degree
of accuracy. Inaccurate survey results can produce an inaccurate
trip reduction target. This can result in a more stringent than
necessary trip reduction target for an employer, or a less stringent
trip reduction target and less emission reduction than expected and
needed for the Ozone Air Quality Maintenance Plan.
- If an employer does not achieve the 75 % response rate, the
shortfall is assigned as "drive alone" trips.
- If you have more than 400 employees at a work site, you can use
a random sample survey method. Contact 503-229-6154 or
for guidance on this method.
When the Surveys are Completed
- Determine that you have achieved at least a 75% response rate
(number of returned surveys divided by total number of surveys
- If your response rate is less than 75%, first try to collect
- If you are unable to achieve the 75% response rate, DEQ will
assign the shortfall as “drive alone” trips.
- If you are tabulating the surveys yourself, do so on the
enclosed ECO Survey Worksheet.
Tips for a Great Survey
Let employees know that the survey is happening and why
- ECO is a required program designed to help reduce air
pollution and keep Portland’s air clean and healthy for all of
us to breathe. It also has the great side benefits of reducing
traffic congestion and enhancing employee well-being. By putting
the ECO survey in context, it becomes more than “just one more
thing to do”.
- Use an electronic survey if possible. It is easy, uses fewer
resources and usually results in better response rates.
- Give employees a short window of time to complete and return
the survey. One week is ideal.
- Be sure to include managers. They commute too!
Using Paper Survey
- Designate one or more staff to hand-deliver a survey to each
employee and wait while the employee completes it.
- Ask employees to complete surveys at staff meetings.
- Include surveys with paychecks.
- Have employees fill out surveys when they pick up their
paychecks. Let them know in advance that picking up their
paychecks will take a couple extra minutes. Make sure plenty of
pencils are available, and that the person distributing the
surveys can answer common questions.
- Include a memo or cover letter explaining how the survey
will benefit employees by identifying preferred transportation
options to management (sample below)
- Demonstrate a strong, positive attitude from top management
supporting the survey.
- Make employees' direct managers responsible for their
- Follow-up with employees who do not return the survey.
- Encourage competition between departments for survey
- Offer a reward such as a latté coupon to the winning
department or for the first five people who return their