University of Leicester researchers found a link between noisy road traffic and increased risk of hypertension. Previous studies suggested it was unclear how noise or air pollution affected blood ...
That is, does the noise come from tire/road contact (so no change) or from the engines (great change)? Does the vehicle speed matter, as in highway noise vs. local connector road noise?
Extended exposure to noise levels of even 80 decibels can cause permanent damage to hearing, which is why it's important to purchase motorcycle helmets that help quiet down distracting road noise.
Finding a way to attenuate especially the low-frequency noise of road traffic was the subject of [Joe Krcma]’s Masters Thesis, the results of which he gave a talk on at the Portland Maker Meetup ...