Next time you hop on your bike, give yourself a pat on the back for being such a model citizen. Not only are you about to get some fresh air and exercise, you are going to save your city some serious dough.
According to a study from Environmental Health Perspectives, cycling infrastructure is a smart investment for penny-pinching city planners. Taking the city of Auckland in New Zealand as a test case, the researchers looked at simulations of different biking scenarios: a shared-road bike lane network, separated arteries of bike lanes on all main roads, something called "self-explaining roads" with car-slowing design elements, as well as a sweet-spot combination of those separated lanes and self-explaining elements.
In every scenario, between $6 and $24 were saved for every dollar spent, compared to a business-as-usual baseline. How, you ask? In addition to the pollution, traffic congestion, and sedentary-lifestyle health problems associated with cars, society bears the brunt of our automobile addiction in the form of medical and emergency services. That car crash is, yes, tragic, but it is also expensive.