Verkkothis paper compares some traffic calming measures in the cities of bilbao, burgos, león and vitoria (located in the north of spain) in order to evaluate. Verkkouncover the positive outcomes of traffic calming, including decreased collision severity and frequency, resulting in greener and more livable. Verkkoin transportation planning, traffic calming refers to a set of design strategies and measures aimed at reducing vehicle speeds and improving safety on streets.