SFCTA collaborated with co:census to create a survey to understand community sentiment around the long-term future of the Great Highway. The survey presented four different roadway configuration options for feedback and asked questions about priorities for the highway. Respondents accessed the survey through SMS text in four languages, including English, Simplified Chinese, Spanish and Filipino. In December 2020, co:census launched the SFCTA D4 Great Highway survey. After three months, the survey closed in January 2021 and engaged a total of 1,863 people.
SFCTA also administered a web/online version of the survey which received 2,126 responses.