Source: http://no-tech-zone.com.License: All Rights Reserved.

Interstatefamily, which is based on the FHWA typeface (Highway Gothic) used by the city's parks and recreation department.

Source: http://no-tech-zone.com.License: All Rights Reserved.

Source: http://no-tech-zone.com.License: All Rights Reserved.

Source: http://www.theguardian.com.Photo by Ben Von Wong. License: All Rights Reserved.

Source: https://twitter.com.Photo by Adam Singer. License: All Rights Reserved.

"No tech zone" around Alamo Square Park? Have you lost your mind, SF? (Photo illegally taken by @AdamSinger) pic.twitter.com/Z0iIPU4Lhh

— Ashley Mayer (@ashleymayer) September 22, 2015