An artfully inexpensive bid to slow speeders - The Boston Globe: "The city of Cambridge sees its latest installation of public art as potentially traffic-stopping. Or , at least, traffic-calming.
This month , local artist Wen-ti Tsen put the finishing touches on the mural -- white, green, and red dashes in a 20-foot-diameter blue circle -- he painted on the pavement at the busy intersection of Walden Street and Vassal Lane , pleasing neighbors and pedestrians, but angering some drivers.
A raised intersection with elevated crosswalks designed to slow traffic, for example, costs about $100,000 , said Avendano. The city paid Tsen $10,000 for his mural and three years of its maintenance."