Several comments on the survey
It was sent to a small audience of people who apparently subscribe to a "flash poll" application. I never even heard of this flash poll application. So the audience is not a microcosm of the residents of Portland. It certainly miss those who do not use electronic media.
The survey did not ask the primary question. IE. Do you support the city implementing this type of infrastructure?
They got 547 responses from an apparent audience of 773 (and 40 others that some how participated) in 48 hours which tells e this is a instagram/twitter savvy community.
It is scary to learn that that the city is using these type of polls without fully understanding the potential bias they present. They should be presented to city leaders with large warnings that they reflect a certain aspect of the community and do not reflect the general views of the residents of the city.
Although the survey was focused on one small piece of infrastructure, the general responses at the end of the survey were surprisingly diverse and informative. It was also very bike, pedestrian, rail supportive.