At least in my city, devices were installed in many bike lanes in order to count the number of userd. They show that people do use them. As for traffic calming

At least in my city, devices were installed in many bike lanes in order to count the number of userd. They show that people do use them. As for traffic calming, curb extensions, etc.: the city only started adding those modifications after pedestrian fatalities started going up and people started demanding them because they got tired of hearing about deaths all of the time. None of this is because the city is pro/anti-development since most of the projects could be construed either way. In a lot of cases it was simply to see which measures were effective because we often lack the data to know what will be effective.