Green-painted bike lanes have become common in DC and around the US. They make bike lanes more visible, helping to remind car drivers to watch for cyclists. But at least 3 other colors are used for the same purpose elsewhere around the world. Here are some examples. Do you know of any others?

Classic green. Used in DC, New York, and all over the US.	London’s Copenhagen’s blue. Photo by Steven Vance.
Amsterdam’s dull red, also seen in Vancouver and many other cities. Photo by Scott Lowe.	Madison’s bright red. Photo by benet2006.