In 2016, Denver declared its aspiration to be a city where zero people die or are injured in traffic crashes on our streets. Becoming that crashless city requires changing our streets, fast. In the name of safety and comfort, the city has taken to using flex posts along with new signage, paint, and rubber curbs on some of Denver’s most dangerous streets along with some of Denver’s quieter neighborhood streets. These tools are cheap, useful, and effective.  But regarding the use of plastic bollards, sold by manufacturers as “flex [...]