Politicians who appreciate riding bikes as a transforming force towards sustainable cities use to support advanced stop lines on streets. An advanced stop line is a special infrastructure in those streets in which there is not bike lines, so bicycles and cars share them. It can also appear in roads with no segregated bike line. As you can see in the picture, bikes have a reserved area just before the traffic light so that cars can not occupy it while in red. The reserved area can be colored in green or red to highlight the place for bikes:

The ideas behind this, or why the advanced stop line is so important, are fundamentally four:

– Bikers become extremely visible to car drivers since these persons just need to open their eyes to see the riders.

– Bikers do not inhale pollution from the cars they have on their backs, or at least they do so at a much less rate.

– Conflicts between bikers and car drivers are reduced because this solution makes clear who is the first to start moving after the traffic light is green.

– Traffic is calmed due to cars can not reach an excessive speed the moment the traffic light is green.