Author works for a company doing such desig it seems, see link in vey first sentence [1]. For an example see the link in the last paragraph [2] where a couple o

Author works for a company doing such desig it seems, see link in vey first sentence [1]. For an example see the link in the last paragraph [2] where a couple of possible techniques are shown. [1] https://altaplanning.com/ https://altaplanning.com/ [2] https://blog.altaplanning.com/reducing-speeding-related-crashes-through-design-5d79e8c7af8e https://blog.altaplanning.com/reducing-speeding-related-cras...