<div dir="ltr"><div dir="ltr">On Sun, 20 Dec 2020 at 16:11, Peter Neale via Tagging <<a href="mailto:tagging@openstreetmap.org">tagging@openstreetmap.org</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:times new roman,new york,times,serif;font-size:16px"><div><div dir="ltr">I agree. To be called a "pillow", it would have to be soft and not rigid.  IIRC there are traffic calming "pillows" that are filled with air and deflate, if you drive over them slowly, but remain inflated, if you drive over at speed.  I regret that I cannot find a reference to them at the moment.</div></div></div></div></blockquote><div><br></div><div><a href="https://en.wikipedia.org/wiki/Speed_bump#Dynamic_speed_bumps">https://en.wikipedia.org/wiki/Speed_bump#Dynamic_speed_bumps</a> <br></div><div><br></div><div>Not what you were thinking of, but achieving the same end (the effect</div><div>depends on the speed of the vehicle): <a href="https://www.matfoundrygroup.com/News%20and%20Blog/The_Future_of_Roads_Liquid_Speed_Bumps">https://www.matfoundrygroup.com/News%20and%20Blog/The_Future_of_Roads_Liquid_Speed_Bumps</a></div><div><br></div><div>-- <br></div><div>Paul</div><div><br></div></div></div>